A compact hydrodynamic sequential injection system for consecutive on-line determination of phosphate and ammonium

© 2019 A simple and compact microfluidic hydrodynamic sequential injection system with a colorimetric detection has been developed for the consecutive determination of phosphate and ammonium in water samples based on molybdenum blue and Berthelot methods. A light-emitting diode as a light source an...

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Main Authors: Wanpen Khongpet, Somkid Pencharee, Chanida Puangpila, Supaporn Kradtap Hartwell, Somchai Lapanantnoppakhun, Jaroon Jakmunee
Format: Journal
Published: 2019
Subjects:
Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85063209759&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/65483
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-654832019-08-05T04:34:02Z A compact hydrodynamic sequential injection system for consecutive on-line determination of phosphate and ammonium Wanpen Khongpet Somkid Pencharee Chanida Puangpila Supaporn Kradtap Hartwell Somchai Lapanantnoppakhun Jaroon Jakmunee Chemistry © 2019 A simple and compact microfluidic hydrodynamic sequential injection system with a colorimetric detection has been developed for the consecutive determination of phosphate and ammonium in water samples based on molybdenum blue and Berthelot methods. A light-emitting diode as a light source and light dependent resistor light sensor were mounted onto the acrylic microfluidic unit for on-line sample and reagents mixing. This portable and miniaturized analytical system was operated automatically by computerized control switching of solenoid valves. Under the optimum operational condition, a linear calibration graph of phosphate and ammonium (as phosphorus, P, and nitrogen, N) in the range of 0.2–3.0 mg P L −1 and 0.3–4.0 mg N L −1 , were achieved with a sample-throughput of 12 h −1 . Limit of detection values for phosphate and ammonium were 0.18 and 0.27 mg L −1 , respectively. The developed system provides a good precision with relative standard deviations of 2.9 and 4.1% for 11 replicated injections of 1 mg P L −1 and 2 mg N L −1 , respectively. Percent recoveries of the analysis of phosphate and ammonium were obtained in the range of 93.5–109.4 and 92.4–107.0, respectively. The developed system offers a compact, durable, cost-effective instrument, with low reagents consumption, that is suitable for monitoring water quality. 2019-08-05T04:34:02Z 2019-08-05T04:34:02Z 2019-06-01 Journal 0026265X 2-s2.0-85063209759 10.1016/j.microc.2019.03.040 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85063209759&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/65483
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Chemistry
spellingShingle Chemistry
Wanpen Khongpet
Somkid Pencharee
Chanida Puangpila
Supaporn Kradtap Hartwell
Somchai Lapanantnoppakhun
Jaroon Jakmunee
A compact hydrodynamic sequential injection system for consecutive on-line determination of phosphate and ammonium
description © 2019 A simple and compact microfluidic hydrodynamic sequential injection system with a colorimetric detection has been developed for the consecutive determination of phosphate and ammonium in water samples based on molybdenum blue and Berthelot methods. A light-emitting diode as a light source and light dependent resistor light sensor were mounted onto the acrylic microfluidic unit for on-line sample and reagents mixing. This portable and miniaturized analytical system was operated automatically by computerized control switching of solenoid valves. Under the optimum operational condition, a linear calibration graph of phosphate and ammonium (as phosphorus, P, and nitrogen, N) in the range of 0.2–3.0 mg P L −1 and 0.3–4.0 mg N L −1 , were achieved with a sample-throughput of 12 h −1 . Limit of detection values for phosphate and ammonium were 0.18 and 0.27 mg L −1 , respectively. The developed system provides a good precision with relative standard deviations of 2.9 and 4.1% for 11 replicated injections of 1 mg P L −1 and 2 mg N L −1 , respectively. Percent recoveries of the analysis of phosphate and ammonium were obtained in the range of 93.5–109.4 and 92.4–107.0, respectively. The developed system offers a compact, durable, cost-effective instrument, with low reagents consumption, that is suitable for monitoring water quality.
format Journal
author Wanpen Khongpet
Somkid Pencharee
Chanida Puangpila
Supaporn Kradtap Hartwell
Somchai Lapanantnoppakhun
Jaroon Jakmunee
author_facet Wanpen Khongpet
Somkid Pencharee
Chanida Puangpila
Supaporn Kradtap Hartwell
Somchai Lapanantnoppakhun
Jaroon Jakmunee
author_sort Wanpen Khongpet
title A compact hydrodynamic sequential injection system for consecutive on-line determination of phosphate and ammonium
title_short A compact hydrodynamic sequential injection system for consecutive on-line determination of phosphate and ammonium
title_full A compact hydrodynamic sequential injection system for consecutive on-line determination of phosphate and ammonium
title_fullStr A compact hydrodynamic sequential injection system for consecutive on-line determination of phosphate and ammonium
title_full_unstemmed A compact hydrodynamic sequential injection system for consecutive on-line determination of phosphate and ammonium
title_sort compact hydrodynamic sequential injection system for consecutive on-line determination of phosphate and ammonium
publishDate 2019
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85063209759&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/65483
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