Development of a portable multi-parameter centrifugal microfluidic analysis system (cmas) for water quality monitoring
Floris, Patrick and Glennon, Tom and O'Quigley, Conor and McNamara, Eoghan and Yang, Yang and Ducrée, Jens and Smeaton, Alan F. and Diamond, Dermot and Fraser, Kevin J. (2014) Development of a portable multi-parameter centrifugal microfluidic analysis system (cmas) for water quality monitoring. In: MFHS 2014 – 2nd International Conference on MicroFluidic Handling Systems, 8-10 Oct 2014, Freiburg, Germany.
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In this paper we report the development of a multi-parameter low-cost (< 100 EUR) portable Centrifugal Microfluidic Analysis System (CMAS) for the in-situ colorimetric analysis of nutrients. Microfluidic discs consisting of three PMMA (Poly(methyl methacrylate)) layers bonded together by two PSA (Pressure Sensitive Adhesive) layers were prepared. A 3D-printed housing was produced for hosting the microfluidic discs which incorporated a low-cost optical sensor for colorimetric detection and a motor which generated the centrifugal force necessary to carry out the tests. Limits of detections of 0.233 ppm, 0.189 ppm and 0.050 ppm were obtained for ammonia, orthophosphate and nitrite respectively.
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