{"id":220249,"date":"2025-03-06T20:02:23","date_gmt":"2025-03-06T20:02:23","guid":{"rendered":"https:\/\/www.solinst.com\/tryptophan-sensors\/"},"modified":"2026-05-20T21:05:03","modified_gmt":"2026-05-20T21:05:03","slug":"tryptophan-sensors","status":"publish","type":"page","link":"https:\/\/www.solinst.com\/en-gb\/products\/solinst-eureka\/water-quality-sensors\/tryptophan-sensors\/","title":{"rendered":"Tryptophan Sensors"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; fullwidth=&#8221;on&#8221; disabled_on=&#8221;on|on|on&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; disabled=&#8221;on&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_fullwidth_image src=&#8221;https:\/\/www.solinst.com\/wp-content\/uploads\/2025\/03\/5001-easy-probe-water-quality-sonde-1920&#215;500-1.webp&#8221; alt=&#8221;solinst eureka easyprobe water quality sondes&#8221; title_text=&#8221;Solinst Eureka EasyProbe Water Quality Sondes&#8221; 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_module_preset=&#8221;default&#8221; width=&#8221;90%&#8221; custom_margin=&#8221;0px||||false|false&#8221; custom_padding=&#8221;0px||||false|false&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_code admin_label=&#8221;Eureka Mobile Nav &#8211; Select Dropdown&#8221; _builder_version=&#8221;4.27.6&#8243; _module_preset=&#8221;default&#8221; custom_css_free_form=&#8221;select {||||      font-size: 1em; \/* Adjust font size *\/||      padding: 10px;   \/* Optional: Increase padding for better spacing *\/||      width: 100%;||      box-sizing: border-box;\/* Optional: Adjust width to fit the container *\/||      height: 50px;||}||||    \/* Style for dropdown options (fallback if needed) *\/||select option {||      font-size: 1.2em; \/* Ensures option text matches select styling *\/||      width: 100%;||    }&#8221; global_colors_info=&#8221;{}&#8221;]<select name=\"dropdown\" onchange=\"location = this.value;\"><!-- [et_pb_line_break_holder] --><option value=\"\">Solinst Eureka Menu<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/\">Solinst Eureka Main Page<\/option><!-- [et_pb_line_break_holder] -->    <!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sondes\/\">Water Quality Sondes<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sondes\/manta-plus-multi-parameter-probes\/\">-Manta Multiparameter Probes<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sondes\/manta-plus-multi-parameter-probes\/manta-plus-20-multiparameter-probes\/\">&#8211;Manta Plus 20<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sondes\/manta-plus-multi-parameter-probes\/manta-plus-25-multiparameter-probes\/\">&#8211;Manta Plus 25<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sondes\/manta-plus-multi-parameter-probes\/manta-plus-30-multiparameter-probe\/\">&#8211;Manta Plus 30<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sondes\/manta-plus-multi-parameter-probes\/manta-plus-35-multiparameter-probes\/\">&#8211;Manta Plus 35<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sondes\/manta-plus-multi-parameter-probes\/manta-f35-multiparameter-water-quality-probes\/\">&#8211;Manta F35<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sondes\/manta-plus-multi-parameter-probes\/manta-plus-40-multiparameter-probe\/\">&#8211;Manta Plus 40<\/option><!-- [et_pb_line_break_holder] -->\t<!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sondes\/trimeter\/\">-Trimeter<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sondes\/trimeter\/datasheet\/\">&#8211;Datasheet<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sondes\/trimeter\/5001-trimeter-sonde-quote-form\/\">&#8211;Get a Quote<\/option><!-- [et_pb_line_break_holder] -->\t<!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sondes\/easy-probe\/\">-EasyProbe Water Quality Sonde<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sondes\/easy-probe\/datasheet\/\">&#8211;Datasheet<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sondes\/easy-probe\/5001-easyprobe-sondes-quote-form\/\">&#8211;Get a Quote<\/option><!-- [et_pb_line_break_holder] -->        <!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sensors\/\">Water Quality Sensors<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sensors\/temperature-sensor\/\">-Temperature Sensor<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sensors\/ph-sensors\/\">-pH Sensors<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sensors\/orp-oxidation-reduction-potential-sensors\/\">-ORP Sensor<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sensors\/turbidity-sensors\/\">-Turbidity Sensors<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sensors\/dissolved-oxygen-sensors\/\">-Dissolved Oxygen Sensors<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sensors\/conductivity-sensors\/\">-Conductivity Sensors<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sensors\/transmittance-sensors\/\">-Transmittance Sensors<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sensors\/pressure-sensors\/\">-Pressure Sensors<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sensors\/total-dissolved-gas-sensors\/\">-Total Dissolved Gas Sensors<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sensors\/c02-carbon-dioxide-sensors\/\">-CO2 Carbon Dioxide Sensors<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sensors\/par-photosynthetically-active-radiation-sensors\/\">-PAR Photosynthetic Active Radiation Sensors<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sensors\/fluorometers\/\">-Fluorometers<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sensors\/chlorophyll-sensors\/\">&#8211;Chlorophyll Sensors<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sensors\/blue-green-algae-sensors\/\">&#8211;Blue Green Algae Sensors<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sensors\/cdom-colored-dissolved-organic-matter-sensors\/\">&#8211;CDOM Coloured Dissolved Organic Matter Sensors<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sensors\/optical-brightener-sensors\/\">&#8211;Optical Brightener Sensors<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sensors\/tryptophan-sensors\/\">&#8211;Tryptophan Sensors<\/option><!-- 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--><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sensors\/ise-ion-selective-electrodes\/\">-ISE Ion Selective Electrodes<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sensors\/water-quality-sensor-configurations\/\">-Water Quality Sensor Configurations<\/option><!-- [et_pb_line_break_holder] -->    <!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/rugged-field-devices-and-apps-for-water-quality-data-collection\/\">Rugged Field Devices and Apps<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/rugged-field-devices-and-apps-for-water-quality-data-collection\/manta-mobile-wireless-data-device\/\">-mantaMobile<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/rugged-field-devices-and-apps-for-water-quality-data-collection\/manta-mobile-wireless-data-device\/datasheet\/\">&#8211;Datasheet<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/rugged-field-devices-and-apps-for-water-quality-data-collection\/manta-link-app\/\">-MantaLink<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/rugged-field-devices-and-apps-for-water-quality-data-collection\/ruggedized-tablets-for-water-quality-monitoring\/\">-Ruggedised Tablets<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/rugged-field-devices-and-apps-for-water-quality-data-collection\/ruggedized-tablets-for-water-quality-monitoring\/samsung-galaxy-tab-active3\/\">&#8211;Samsung Galaxy Tab Active3<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/rugged-field-devices-and-apps-for-water-quality-data-collection\/ruggedized-tablets-for-water-quality-monitoring\/juniper-systems-mesa3\/\">&#8211;Juniper Systems MESA3<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/rugged-field-devices-and-apps-for-water-quality-data-collection\/ruggedized-tablets-for-water-quality-monitoring\/ipad-mini-ruggedized-tablet\/\">&#8211;iPad Mini Ruggedised Tablet<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/rugged-field-devices-and-apps-for-water-quality-data-collection\/ruggedized-tablets-for-water-quality-monitoring\/juniper-cedar-ct8x2\/\">&#8211;Juniper Cedar CT8X2 Ruggedised Table<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/rugged-field-devices-and-apps-for-water-quality-data-collection\/remote-water-quality-monitoring\/\">-Remote Water Quality Monitoring  <\/option><!-- [et_pb_line_break_holder] -->\t<!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-monitoring-accessories\/\">Water Quality Monitoring Accessories<\/option><!-- [et_pb_line_break_holder] -->\t<!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-monitoring-applications\/\">Water Quality Monitoring Applications<\/option><!-- [et_pb_line_break_holder] -->   <!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/quote\/\">Get a Quote<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/contact\/\">Contact Us<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/distributors\/\">Solinst Eureka Distributors<\/option><!-- [et_pb_line_break_holder] -->\t<!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/support\/\">Solinst Eureka Support<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/support\/rma-return-material-authorization-form\/\">-Return Material Authorisation<\/option><!-- [et_pb_line_break_holder] -->\t<!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/maintenance-program\/\">Solinst Eureka Maintenance Programme<\/option><!-- [et_pb_line_break_holder] -->\t<!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/success-cases\/\">Solinst Eureka Success Cases<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/success-cases\/manta-probes-monitor-water-quality-at-jellyfish-lake-palau\/\">-Manta Probes Used at JellyFish Lake<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/success-cases\/ut-dallas-disaster-team-uses-eureka-probes-in-dangerous-environments\/\">-Eureka Probes used in Dangerous Environments<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/success-cases\/solar-charged-continous-monitoring-in-rugged-conditions\/\">-SFPUC: Solar Charged Continuous Monitoring in Rugged Conditions<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/success-cases\/scientists-monitor-water-in-everglades-with-hydrostation\/\">-Scientists Monitor Water in Everglades with Hydrostation-in-a-briefcase<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/success-cases\/maintaining-water-quality-in-a-formerly-flammable-river\/\">-Maintaining Water Quality in a Formerly Flammable River<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/success-cases\/after-a-megafire-how-are-waterways-impacted-by-a-wildfire\/\">-BYU: After a Mega Fire, How Are Waterways Impacted by a Wildfire?<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/success-cases\/robots-used-to-analyze-aquatic-environments\/\">-UT: Robots used to Analyse Aquatic Environments<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/success-cases\/nps-eastern-river-and-mountains-network\/\">-NPS, Eastern River and Mountains Network<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/success-cases\/remote-monitoring-for-early-warning-of-water-pollution-events\/\">-Remote Monitoring for Early Warning of Water Pollution Events<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/success-cases\/turbidity-monitoring-establishes-baseline-data-prior-to-construction-activities\/\">-Turbidity Monitoring Established Baseline Data Prior to Construction Activities<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/success-cases\/monitoring-in-high-hypolimnetic-sulfide-concentrations\/\">-Vertical Profiler Provides Continuous Monitoring in High Hypolimnetic Sulfide Concentrations<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/success-cases\/water-quality-monitoring-in-extreme-bio-fouling-conditions\/\">-Successful Continuous Water Quality Monitoring in Extreme Bio-Fouling Conditions<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/success-cases\/high-resolution-temporal-monitoring-of-an-arid-urban-lake\/\">-High-Resolution Temporal Monitoring of an Arid, Urban Lake<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/success-cases\/water-reuse-model-research\/\">-Water Reuse Model Research<\/option><!-- [et_pb_line_break_holder] -->  <!-- [et_pb_line_break_holder] --><\/select>[\/et_pb_code][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; specialty=&#8221;on&#8221; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;5a5bca26-a9a5-4e6c-8fca-d64da3bdcd40&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;1_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; 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\/>2113 Wells Branch Pkwy, Suite 4400<br \/>Austin, TX, USA<br \/>78728<\/p>\n<p>Tel: +1 512-302-4333<br \/>Fax: +1 512-251-6842<br \/>email: <a href=\"mailto:eureka@solinst.com\">eureka@solinst.com<\/a><\/p>\n<p>[\/et_pb_text][et_pb_slider disabled_on=&#8221;on|on|off&#8221; _builder_version=&#8221;4.27.6&#8243; _module_preset=&#8221;default&#8221; display_conditions=&#8221;W10=&#8221; link_option_url=&#8221;https:\/\/www.solinst.com\/instruments\/dataloggers-and-telemetry-systems\/3001-levelogger\/?utm_source=solinst&#038;utm_medium=WC-global-sidebar-position1&#038;utm_campaign=3001&#8243; global_module=&#8221;53188&#8243; saved_tabs=&#8221;all&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_slide button_text=&#8221;Levelogger&#8221; button_link=&#8221;https:\/\/www.solinst.com\/en-gb\/products\/data-loggers-and-telemetry-systems\/3001-levelogger\/?utm_source=solinst&amp;utm_medium=WC-global-sidebar-position1&amp;utm_campaign=3001&#8243; use_bg_overlay=&#8221;on&#8221; 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button_border_width__hover_enabled=&#8221;on|hover&#8221; button_border_width__hover=&#8221;2px&#8221; sticky_transition=&#8221;on&#8221;]<\/p>\n<h2><strong><\/strong><\/h2>\n<h2><strong><\/strong><\/h2>\n<h2><strong><\/strong><\/h2>\n<p>&nbsp;<\/p>\n<h2>Accurate Water Level Data<\/h2>\n<p><b>Reliable Instruments that Last<\/b><\/p>\n<p>[\/et_pb_slide][\/et_pb_slider][et_pb_slider disabled_on=&#8221;on|on|off&#8221; _builder_version=&#8221;4.27.6&#8243; _module_preset=&#8221;default&#8221; link_option_url=&#8221;https:\/\/www.solinst.com\/careers\/?utm_source=solinst&#038;utm_medium=WC-global-sidebar-position2&#038;utm_campaign=SUK-regional-sales-manager&#8221; global_module=&#8221;53561&#8243; saved_tabs=&#8221;all&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_slide heading=&#8221;Solinst UK Is Hiring!&#8221; button_text=&#8221;Regional Sales Manager&#8221; 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header_text_shadow_style=&#8221;preset5&#8243; global_colors_info=&#8221;{}&#8221; sticky_transition=&#8221;on&#8221;]<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>[\/et_pb_slide][\/et_pb_slider][\/et_pb_column][et_pb_column type=&#8221;3_4&#8243; specialty_columns=&#8221;3&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_row_inner column_structure=&#8221;1_2,1_2&#8243; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;3d476e59-90e6-46d3-a8fc-802e4e9a9788&#8243; global_colors_info=&#8221;{}&#8221; locked=&#8221;off&#8221;][et_pb_column_inner type=&#8221;1_2&#8243; saved_specialty_column_type=&#8221;3_4&#8243; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_button 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_dynamic_attributes=&#8221;button_url&#8221; _module_preset=&#8221;9559c3e8-ec08-4752-8f0c-e89abbf14bdf&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;][\/et_pb_button][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;3d68e16c-1ed2-447f-b17f-a63c20af3cf6&#8243; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column_inner saved_specialty_column_type=&#8221;3_4&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][dsm_icon_list icon_font_size=&#8221;30px&#8221; list_alignment=&#8221;flex-end&#8221; text_indent=&#8221;10px&#8221; list_alignment_tablet=&#8221;flex-end&#8221; list_alignment_phone=&#8221;flex-start&#8221; list_alignment_last_edited=&#8221;on|desktop&#8221; _builder_version=&#8221;4.27.6&#8243; _module_preset=&#8221;default&#8221; text_font=&#8221;|600|||||||&#8221; link_option_url_new_window=&#8221;on&#8221; global_colors_info=&#8221;{}&#8221;][dsm_icon_list_child text=&#8221;5001 Fluorometers PDF&#8221; font_icon=&#8221;&#xf1c1;||fa||900&#8243; icon_color=&#8221;#ff8500&#8243; url=&#8221;https:\/\/www.solinst.com\/products\/data\/5001-fluorometers.pdf&#8221; url_new_window=&#8221;on&#8221; _builder_version=&#8221;4.27.6&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; icon_color__hover_enabled=&#8221;on|hover&#8221; icon_color__hover=&#8221;#828282&#8243; text_text_color__hover_enabled=&#8221;on|hover&#8221; text_text_color__hover=&#8221;#7a7a7a&#8221;][\/dsm_icon_list_child][\/dsm_icon_list][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner column_structure=&#8221;1_2,1_2&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;3676f7e6-7b83-4698-94ce-2cc9fa9ae43d&#8221; custom_padding=&#8221;0px||||false|false&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column_inner type=&#8221;1_2&#8243; saved_specialty_column_type=&#8221;3_4&#8243; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;RGBA(255,255,255,0)&#8221; custom_padding=&#8221;|||0px|false|false&#8221; custom_css_free_form=&#8221;width: 68%!important;||margin-right: 2%!important;&#8221; global_colors_info=&#8221;{}&#8221; background__hover_enabled=&#8221;on|hover&#8221; background_color__hover=&#8221;&#8221; background_enable_color__hover=&#8221;off&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; header_2_font_size=&#8221;24px&#8221; width=&#8221;100%&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h2><strong>Why would I want to measure Tryptophan?<\/strong><\/h2>\n<p><span>Tryptophan is an amino acid dissolved in water that has a specific excitation and emission. It is classified as protein-like organic matter and sources may include water systems with high biological activity and wastewater or industrial discharge. Tryptophan is yet another parameter researchers can measure to track wastewater effluent, which may greatly impact habitats and wildlife.  <\/span><\/p>\n<h2><strong>How is Tryptophan Measured?<\/strong><\/h2>\n<p>Many of the instruments available for measuring fluorescence of Tryptophan are cumbersome, complex, expensive, and require a high degree of training and expertise to operate. These instruments may also provide too much information to end users who are looking for a simple measure of fluorescence response from, and relative changes of Tryptophan in water. Solinst Eureka\u2019s tryptophan sensor is a <a href=\"https:\/\/www.solinst.com\/en-gb\/products\/solinst-eureka\/water-quality-sensors\/fluorometers\/\" title=\"Fluorometer Sensor Technology\"><strong>fluorometric sensor<\/strong><\/a>. Fluorescence occurs when a molecule absorbs light energy at one wavelength and then emits that energy at a different wavelength. Fluorometric sensors emit light at a certain wavelength, and look for a very specific, different wavelength in return.    <\/p>\n<p>The Tryptophan fluorometer outputs a 0-5 volt analogue signal proportional to the fluorescence response of the Tryptophan dissolved in water. The <a href=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sondes\/manta-plumultiparameter-probes\/\" title=\"Manta Plus Multiparameter Probes\"><strong>MantaPlus<\/strong><\/a> converts the signal to a digital format, for the measurement of Tryptophan in concentrations 0 \u2013 5000 ppb. <\/p>\n<p>For the purpose of identifying the presence\/absence of protein-like organic matter that may indicate wastewater discharge, Eureka\u2019s Tryptophan fluorometer enables users to detect Tryptophan within a low level range (limit of detection of 3 ppb) needed for this type of environmental study.<\/p>\n<h2><strong>What should I know about Tryptophan measurement in the field?<\/strong><\/h2>\n<p><span>The microbial contamination of waterways by faecal microbes, and specifically, pathogenic microbes, presents a major problem in the United Kingdom and worldwide. Recreational waters are susceptible to a variety of microbial pollution sources containing pathogenic microorganisms that can cause GI, upper respiratory tract, ears, eyes, nasal cavity and skin infections. Laboratory analysis, used for measuring faecal indicator bacteria can take 18-24 hours, which is too long since water conditions may change rapidly, putting swimmers at increased risk. Many studies are underway to explore the alternative approach of measuring tryptophan fluorescence real-time, and using correlation coefficients to translate to Total Coliforms. This approach is much less costly over time, with faster results.    <\/span><\/p>\n<p>[\/et_pb_text][et_pb_text _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; custom_margin=&#8221;40px||||false|false&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h2><strong>Features of Solinst Eureka\u2019s Tryptophan Sensors<br \/><\/strong><\/h2>\n<p>Solinst Eureka MantaPlus multiparameter probes can be configured to include any of our fluorometers. The Tryptophan sensor can be installed alongside other sensors such as additional fluorometers, turbidity, dissolved oxygen, pH and conductivity. This offers a cost-effective approach, as there is no need to purchase a dedicated fluorometer system. Operation is made easy, as the Tryptophan sensor is controlled by the Manta software, just like other installed sensors.    When only the Tryptophan sensor is required, it can be installed stand-alone on one of Eureka\u2019s smaller probes, such as the Trimeter. <\/p>\n<p>Manta Plus and Trimeter Multiprobes may be configured as loggers with battery packs for autonomous self-powered deployment, used with field displays for site-to-site spot checking, or connected to data telemetry stations for real-time remote monitoring. Eureka sondes equipped with fluorometers are portable, durable, and cost-effective. <span> <\/span><\/p>\n<p>[\/et_pb_text][\/et_pb_column_inner][et_pb_column_inner type=&#8221;1_2&#8243; saved_specialty_column_type=&#8221;3_4&#8243; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;RGBA(255,255,255,0)&#8221; custom_css_free_form=&#8221;width: 30%!important;&#8221; global_colors_info=&#8221;{}&#8221; background_color__hover=&#8221;&#8221; background__hover_enabled=&#8221;on|hover&#8221; background_enable_color__hover=&#8221;off&#8221;][et_pb_image src=&#8221;https:\/\/www.solinst.com\/wp-content\/uploads\/2025\/03\/solinst-eureka-tryptophan-sensors.webp&#8221; alt=&#8221;tryptophan sensors for water quality monitoring of effluent discharge&#8221; title_text=&#8221;Tryptophan Sensors For Water Quality Monitoring Of Effluent Discharge&#8221; align=&#8221;center&#8221; align_tablet=&#8221;center&#8221; align_phone=&#8221;center&#8221; align_last_edited=&#8221;on|tablet&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; custom_margin_tablet=&#8221;20px||||false|false&#8221; custom_margin_phone=&#8221;20px||||false|false&#8221; custom_margin_last_edited=&#8221;on|tablet&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][et_pb_text _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; header_2_font_size=&#8221;24px&#8221; width=&#8221;100%&#8221; custom_margin=&#8221;30px||||false|false&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h2 style=\"text-align: left;\"><strong>Tryptophan Sensors for<br \/>Water Quality Sondes<\/strong><\/h2>\n<div class=\"jqw1mt QfrfFD cell\">\n<div dir=\"ltr\">\n<ul data-hook=\"stacked-info-section\" class=\"wEn8Wy\"><\/ul>\n<ul>\n<li><strong>Range<br \/><\/strong><span>0 to 5000 ppb<\/span><\/li>\n<li><strong>Accuracy<br \/><\/strong><span>linearity of 0.99 R\u00b2<\/span><\/li>\n<li><strong>Resolution<br \/><\/strong><span>0.01<\/span><\/li>\n<li><strong>Units<\/strong><br \/><span>ppb<\/span><\/li>\n<li><strong>Calibration<br \/><\/strong>lab-qualified sample<\/li>\n<li><strong>Maintenance<br \/><\/strong><span>occasional cleaning<\/span><\/li>\n<li><strong>Sensor Life<\/strong><br \/><span>5+ years<\/span><\/li>\n<li><strong>Sensor Type<br \/><\/strong><span>fluorescence<\/span><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<p>[\/et_pb_text][et_pb_button button_url=&#8221;@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF9saW5rX3VybF9wYWdlIiwic2V0dGluZ3MiOnsicG9zdF9pZCI6IjQ1ODA3In19@&#8221; button_text=&#8221;Get Quote&#8221; admin_label=&#8221;get quote button&#8221; _builder_version=&#8221;4.27.4&#8243; _dynamic_attributes=&#8221;button_url&#8221; _module_preset=&#8221;c9e00792-1360-4998-8cf9-5f6772c944ba&#8221; global_module=&#8221;46404&#8243; saved_tabs=&#8221;all&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_button][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;||9px|||&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column_inner saved_specialty_column_type=&#8221;3_4&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h2><strong>Related Products<\/strong><\/h2>\n<p>[\/et_pb_text][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner column_structure=&#8221;1_2,1_2&#8243; make_equal=&#8221;on&#8221; disabled_on=&#8221;off|off|off&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; custom_margin=&#8221;0px||1em||false|false&#8221; custom_padding=&#8221;0px||0px||false|false&#8221; custom_css_main_element=&#8221;align-items: center;&#8221; border_width_bottom=&#8221;1px&#8221; border_color_bottom=&#8221;#d3d3d3&#8243; global_module=&#8221;69009&#8243; saved_tabs=&#8221;all&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column_inner type=&#8221;1_2&#8243; _builder_version=&#8221;4.25.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/www.solinst.com\/wp-content\/uploads\/2025\/01\/solinst-eureka-multi-parameter-probes.webp&#8221; alt=&#8221;solinst eureka multi-parameter water probes&#8221; title_text=&#8221;Solinst Eureka Multi-parameter Water Probes&#8221; url=&#8221;@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF9saW5rX3VybF9wYWdlIiwic2V0dGluZ3MiOnsicG9zdF9pZCI6IjY1MDM3In19@&#8221; align=&#8221;center&#8221; _builder_version=&#8221;4.27.4&#8243; _dynamic_attributes=&#8221;url&#8221; _module_preset=&#8221;default&#8221; border_color_all=&#8221;#bcbcbc&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][\/et_pb_column_inner][et_pb_column_inner type=&#8221;1_2&#8243; _builder_version=&#8221;4.25.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; header_2_line_height=&#8221;1.3em&#8221; custom_margin_tablet=&#8221;0px||||false|false&#8221; custom_margin_phone=&#8221;0px||||false|false&#8221; custom_margin_last_edited=&#8221;off|desktop&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h3><a href=\"https:\/\/www.solinst.com\/instruments\/solinst-eureka\/water-quality-sondes\/manta-plumultiparameter-probes\/\" title=\"Manta Series Water Quality Probes\">Manta Series Water Quality Probes<\/a><\/h3>\n<p><a href=\"https:\/\/www.solinst.com\/en-gb\/products\/solinst-eureka\/\" title=\"Solinst Eureka Water Quality Probes\"><strong>Solinst Eureka<\/strong><\/a><span>  offers the largest selection of water quality sensor technologies in the industry. So in addition to standard configurations, each probe may be customised for your specific application. Pick sensors of your choice to fully populate larger probes, or add a battery pack to convert a probe to a logging device. <\/span><\/p>\n<p>[\/et_pb_text][et_pb_button button_url=&#8221;@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF9saW5rX3VybF9wYWdlIiwic2V0dGluZ3MiOnsicG9zdF9pZCI6IjY1MDM3In19@&#8221; button_text=&#8221;Manta Water Quality Sondes&#8221; button_alignment=&#8221;left&#8221; button_alignment_tablet=&#8221;center&#8221; button_alignment_phone=&#8221;center&#8221; button_alignment_last_edited=&#8221;on|phone&#8221; _builder_version=&#8221;4.27.4&#8243; _dynamic_attributes=&#8221;button_url&#8221; _module_preset=&#8221;default&#8221; custom_button=&#8221;on&#8221; button_text_size=&#8221;18px&#8221; button_text_color=&#8221;#000000&#8243; button_bg_color=&#8221;#FFFFFF&#8221; button_border_color=&#8221;#ff8500&#8243; button_border_radius=&#8221;20px&#8221; button_icon=&#8221;&#x3d;||divi||400&#8243; custom_padding=&#8221;0px|||||&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_button][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner column_structure=&#8221;1_2,1_2&#8243; make_equal=&#8221;on&#8221; disabled_on=&#8221;off|off|off&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; custom_css_main_element=&#8221;align-items: center;&#8221; border_width_bottom=&#8221;1px&#8221; border_color_bottom=&#8221;#d3d3d3&#8243; global_module=&#8221;69010&#8243; saved_tabs=&#8221;all&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column_inner type=&#8221;1_2&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/www.solinst.com\/wp-content\/uploads\/2025\/03\/5001-trimeter-water-quality-sonde-965&#215;500-1.webp&#8221; alt=&#8221;solinst eureka trimeter water quality sondes&#8221; title_text=&#8221;Solinst Eureka Trimeter Water Quality Sondes&#8221; url=&#8221;@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF9saW5rX3VybF9wYWdlIiwic2V0dGluZ3MiOnsicG9zdF9pZCI6IjY0OTQwIn19@&#8221; align=&#8221;center&#8221; _builder_version=&#8221;4.27.4&#8243; _dynamic_attributes=&#8221;url&#8221; _module_preset=&#8221;default&#8221; border_color_all=&#8221;#bcbcbc&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][\/et_pb_column_inner][et_pb_column_inner type=&#8221;1_2&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; header_2_line_height=&#8221;1.3em&#8221; custom_margin_tablet=&#8221;0px||||false|false&#8221; custom_margin_phone=&#8221;0px||||false|false&#8221; custom_margin_last_edited=&#8221;off|desktop&#8221; link_option_url=&#8221;https:\/\/www.solinst.com\/products\/level-measurement-devices\/103-tag-line\/&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h3><a href=\"https:\/\/www.solinst.com\/en-gb\/products\/solinst-eureka\/water-quality-sondes\/trimeter\/\" title=\"Manta Trimeter Water Quality Probe\">Manta Trimeter Water Quality Probe<\/a><\/h3>\n<p><span>The <a href=\"https:\/\/www.solinst.com\/en-gb\/products\/solinst-eureka\/water-quality-sondes\/trimeter\/\" title=\"Trimeter Low Cost Water Quality Sonde\"><strong>Trimeter<\/strong><\/a> holds any one sensor* from the Sensor Parameters list, plus temperature and depth sensors (both are optional). 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Another example could be DO and temperature.<\/span><\/p>\n<p>[\/et_pb_text][et_pb_button button_url=&#8221;@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF9saW5rX3VybF9wYWdlIiwic2V0dGluZ3MiOnsicG9zdF9pZCI6IjY0OTQwIn19@&#8221; button_text=&#8221;Manta Trimeter Water Quality Probe&#8221; button_alignment=&#8221;left&#8221; button_alignment_tablet=&#8221;center&#8221; button_alignment_phone=&#8221;center&#8221; button_alignment_last_edited=&#8221;on|phone&#8221; _builder_version=&#8221;4.27.4&#8243; _dynamic_attributes=&#8221;button_url&#8221; _module_preset=&#8221;default&#8221; custom_button=&#8221;on&#8221; button_text_size=&#8221;18px&#8221; button_text_color=&#8221;#000000&#8243; button_bg_color=&#8221;#FFFFFF&#8221; button_border_color=&#8221;#ff8500&#8243; button_border_radius=&#8221;20px&#8221; button_icon=&#8221;&#x3d;||divi||400&#8243; custom_padding=&#8221;0px|||||&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_button][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner column_structure=&#8221;1_2,1_2&#8243; make_equal=&#8221;on&#8221; disabled_on=&#8221;off|off|off&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; custom_css_main_element=&#8221;align-items: center;&#8221; border_width_bottom=&#8221;1px&#8221; border_color_bottom=&#8221;#d3d3d3&#8243; global_module=&#8221;69121&#8243; saved_tabs=&#8221;all&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column_inner type=&#8221;1_2&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/www.solinst.com\/wp-content\/uploads\/2025\/03\/5001-easyprobe-water-quality-sondes.webp&#8221; alt=&#8221;solinst eureka easyprobe water quality sondes&#8221; title_text=&#8221;Solinst Eureka EasyProbe Water Quality Sondes&#8221; url=&#8221;@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF9saW5rX3VybF9wYWdlIiwic2V0dGluZ3MiOnsicG9zdF9pZCI6IjY1MTQ3In19@&#8221; align=&#8221;center&#8221; _builder_version=&#8221;4.27.4&#8243; _dynamic_attributes=&#8221;url&#8221; _module_preset=&#8221;default&#8221; border_color_all=&#8221;#bcbcbc&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][\/et_pb_column_inner][et_pb_column_inner type=&#8221;1_2&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; header_2_line_height=&#8221;1.3em&#8221; custom_margin_tablet=&#8221;0px||||false|false&#8221; custom_margin_phone=&#8221;0px||||false|false&#8221; custom_margin_last_edited=&#8221;off|desktop&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h3><a href=\"https:\/\/www.solinst.com\/en-gb\/products\/solinst-eureka\/water-quality-sondes\/easyprobe-water-quality-sonde\/\" title=\"EasyProbe: Water Quality Sondes\">EasyProbe: Water Quality Sondes<\/a><\/h3>\n<p><span>The <a href=\"https:\/\/www.solinst.com\/en-gb\/products\/solinst-eureka\/water-quality-sondes\/easyprobe-water-quality-sonde\/\" title=\"EasyProbe Water Quality Sonde\"><strong>EasyProbe<\/strong><\/a>, by Solinst Eureka, is a high-performance, cost-effective water quality monitor. It&#8217;s ideal for spot-checking, remote telemetry, education, research, aquaculture, and more. The EasyProbe20 includes sensors for temperature, dissolved oxygen, conductivity, and pH, while the EasyProbe30 adds a turbidity sensor.   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It is programmed to record at intervals as often as 2 seconds. It includes an 8-year battery, memory for 100,000 sets of readings, and comes in 6 pressure ranges. A PFAS-free coating (inside and out) provides superior corrosion and abrasion resistance.   <\/p>\n<p>[\/et_pb_text][et_pb_button button_url=&#8221;https:\/\/www.solinst.com\/products\/dataloggers-and-telemetry\/3001-levelogger-series\/ltc-levelogger\/&#8221; button_text=&#8221;Versatile Conductivity Datalogger&#8221; button_alignment=&#8221;left&#8221; button_alignment_tablet=&#8221;center&#8221; button_alignment_phone=&#8221;center&#8221; button_alignment_last_edited=&#8221;on|phone&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; custom_button=&#8221;on&#8221; button_text_size=&#8221;18px&#8221; button_text_color=&#8221;#000000&#8243; button_bg_color=&#8221;#FFFFFF&#8221; button_border_color=&#8221;#ff8500&#8243; button_border_radius=&#8221;20px&#8221; button_icon=&#8221;&#x3d;||divi||400&#8243; custom_padding=&#8221;0px|||||&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_button][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner column_structure=&#8221;1_2,1_2&#8243; make_equal=&#8221;on&#8221; disabled_on=&#8221;off|off|off&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; custom_css_main_element=&#8221;align-items: center;&#8221; border_width_bottom=&#8221;1px&#8221; border_color_bottom=&#8221;#d3d3d3&#8243; global_module=&#8221;44750&#8243; saved_tabs=&#8221;all&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column_inner type=&#8221;1_2&#8243; _builder_version=&#8221;4.25.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/www.solinst.com\/wp-content\/uploads\/2025\/01\/107-tlc-meter.webp&#8221; alt=&#8221;solinst model 107 tlc meter for temperature and conductivity profiling&#8221; title_text=&#8221;Solinst Model 107 TLC Meter For Temperature And Conductivity Profiling&#8221; url=&#8221;https:\/\/www.solinst.com\/products\/level-measurement-devices\/107-tlc-meter\/&#8221; align=&#8221;center&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; max_width=&#8221;100%&#8221; border_color_all=&#8221;#bcbcbc&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][\/et_pb_column_inner][et_pb_column_inner type=&#8221;1_2&#8243; _builder_version=&#8221;4.25.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; header_2_line_height=&#8221;1.3em&#8221; custom_margin_tablet=&#8221;0px||||false|false&#8221; custom_margin_phone=&#8221;0px||||false|false&#8221; custom_margin_last_edited=&#8221;off|desktop&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h3>TLC Meter \u2013 Measure Accurate Temperature, Level &#038; Conductivity<\/h3>\n<p>A <a href=\"https:\/\/www.solinst.com\/products\/level-measurement-devices\/107-tlc-meter\/\" title=\"TLC Meter Water Temperature and Water Conductivity Profiling\"><strong>TLC Meter<\/strong><\/a> provides accurate, stable temperature and conductivity measurements, displayed on a convenient LCD display for easy reading. 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Tryptophan is an amino acid dissolved in water that has a specific excitation and emission. It is classified as protein-like organic matter and sources may include water systems with high biological activity and wastewater or industrial discharge. Tryptophan is yet another parameter researchers can measure to track wastewater effluent, which may greatly impact habitats and wildlife. How is Tryptophan Measured? Many of the instruments available for measuring fluorescence of Tryptophan are cumbersome, complex, expensive, and require a high degree of training and expertise to operate. These instruments may also provide too much information to end users who are looking for a simple measure of fluorescence response from, and relative changes of Tryptophan in water. Solinst Eureka\u2019s tryptophan sensor is a fluorometric sensor. Fluorescence occurs when a molecule absorbs light energy at one wavelength and then [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":220137,"parent":220652,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"folder":[309],"class_list":["post-220249","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.5 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Tryptophan Sensors: Water Quality Monitoring<\/title>\n<meta name=\"description\" content=\"Tryptophan Sensors: Water Quality Monitoring Tryptophan is an amino acid dissolved in water that has a specific excitation and emission.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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