A submersible phosphate analyzer for marine environments based on inlaid microfluidics
Sean Morgan, Edward Luy, Arnold Furlong, Vincent J. Sieben
Abstract
applications. The sensor is first deployed from a pier at a depth of 6 m, with simultaneous bottle samples taken to perform cross-validation. It is next deployed on the Stella Maris testbed, a multi-sensor seabed platform (MSSP), 100 m offshore and 9 m deep in the inlet to the Bedford Basin in Nova Scotia, Canada. Over 300 successful phosphate measurements were acquired, showing the influence of the tidal cycle, and confirming the sensor's viability in observing nutrient flux dynamics with nanomolar variations.
Topics & Concepts
Detection limitAbsorbanceSeawaterPhosphateEnvironmental scienceMicrofluidicsIn situMaterials scienceAnalytical Chemistry (journal)ChemistryEnvironmental chemistryChromatographyNanotechnologyGeologyOceanographyOrganic chemistryAnalytical Chemistry and SensorsWater Quality Monitoring TechnologiesWater Quality Monitoring and Analysis