Lab-on-a-chip Sensor for In Situ Nutrient Monitoring

被引：1

作者：

Murphy, Benjamin ^{[1
]}

Morgan, Sean ^{[1
]}

Luy, Edward ^{[1
]}

Creelman, Joshua ^{[1
]}

Sieben, Vincent ^{[1
]}

机构：

[1] Dalhousie Univ, Dept Elect & Comp Engn, Halifax, NS, Canada

来源：

OCEANS 2019 MTS/IEEE SEATTLE | 2019年

基金：

加拿大自然科学与工程研究理事会;

关键词：

nutrient; microfluidic; sensor; in situ; spectrophotometry; AMMONIA;

D O I：

10.23919/oceans40490.2019.8962689

中图分类号：

U6 [水路运输]; P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

Presented here is a low-cost in situ nutrient sensor based on lab-on-a-chip (LOC) technologies. A microfluidic chip with integrated check valves and a novel absorbance cell forms the backbone of the sensor. Using spectrophotometry to measure concentrations of nitrite and phosphate in liquid samples, effective limits of detection (LOD) of 30 nM and 100 nM are achieved for nitrite and phosphate respectively using a 10 mm optical path. The sensor was deployed in the Bedford Basin in Halifax, Canada for 12 hours for in situ phosphate measurement and analysis.

引用

页数：7

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