An automated microfluidic colourimetric sensor applied in situ to determine nitrite concentration
Beaton, Alexander D., Sieben, Vincent J., Floquet, Cedric F.A., Waugh, Edward M., Abi Kaed Bey, Samer, Ogilvie, Iain R.G., Mowlem, Matthew C. and Morgan, Hywel (2011) An automated microfluidic colourimetric sensor applied in situ to determine nitrite concentration. Sensors and Actuators B Chemical, 156, (2), 1009-1014. (doi:10.1016/j.snb.2011.02.042).
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A stand-alone sensor system with integrated sub-systems is demonstrated. The system is portable and capable of in situ reagent-based nutrient analysis. The system is based on a low cost optical detection method, together with an automated microfluidic delivery system that is able to detect nitrite with a limit of detection (LOD) of 15 nM. The sensor was operated in situ at Southampton Dockhead for 57 h (December 2010) and 375 measurements were taken.
|Keywords:||Griess nitrite detection; Automated PMMA microfluidic chip; Integrated colourimetric sensor; Spectrophotometry; Environment|
|Subjects:||T Technology > T Technology (General)|
|Divisions:||University Structure - Pre August 2011 > National Oceanography Centre (NERC)
University Structure - Pre August 2011 > School of Electronics and Computer Science > Nano-Scale Integration Group
National Oceanography Centre (NERC) > Ocean Technology and Engineering
|Date Deposited:||25 Jul 2011 12:41|
|Last Modified:||27 Mar 2014 19:44|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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