Publication: A microfluidic paper-based analytical device for type-II pyrethroid targets in an environmental water sample
Issued Date
2020-08-01
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ISSN
14248220
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2-s2.0-85088567853
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Mahidol University
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SCOPUS
Bibliographic Citation
Sensors (Switzerland). Vol.20, No.15 (2020), 1-15
Suggested Citation
Sumate Pengpumkiat, Jintana Nammoonnoy, Watcharaporn Wongsakoonkan, Pajaree Konthonbut, Pornpimol Kongtip A microfluidic paper-based analytical device for type-II pyrethroid targets in an environmental water sample. Sensors (Switzerland). Vol.20, No.15 (2020), 1-15. doi:10.3390/s20154107 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/57691
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Title
A microfluidic paper-based analytical device for type-II pyrethroid targets in an environmental water sample
Abstract
© 2020 by the authors. Licensee MDPI, Basel, Switzerland. A detection method for type-II pyrethroids in an environmental water sample using a microfluidic paper-based analytical device (µPAD) is reported here. The detection approach is based on the formation of cyanide from the hydrolysis of type-II pyrethroids and the colorimetric detection of cyanide on a layer-based µPAD. Parafilm and inexpensive laminating pouches were used to create a hydrophobic barrier for the assay on the µPAD. This detection approach was selective to type-II pyrethroids in water for which an environmental water sample was tested. The calibration curves for cypermethrin, deltamethrin, cyhalothrin, and fenvalerate ranged from 2 to 40 µg/mL without sample preconcentration. The lower concentrations of type-II pyrethroids can be assessed by including a preconcentration step prior to the detection on a µPAD. This detection system provides an alternative platform for fast, semiquantitative testing for pesticide contamination in environmental surface water by allowing for portability, low reagent/sample consumption, and low-cost testing.