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Vol 26 No Supplementary Issue

Copyright (c) 2014 B. Ninwong1, W. Dungchai2

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Determination of Fe(II) in Drinking Water by Paper-Based Microfluidic Devices with Colorimetric Sensing

https://doi.org/10.14233/ajchem.2014.19029
B. Ninwong1
1Department of Chemistry, Faculty of Science and Technology, Nakhon Si Thammarat Rajabhat University, Nakhon Si Thammarat 80280, Thailand 2Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok 10140, Thailand *Corresponding author: Fax: +66 75 377443; Tel: +66 83 9096332; E-mail: ben-benone@hotmail.com
W. Dungchai2
1Department of Chemistry, Faculty of Science and Technology, Nakhon Si Thammarat Rajabhat University, Nakhon Si Thammarat 80280, Thailand 2Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok 10140, Thailand *Corresponding author: Fax: +66 75 377443; Tel: +66 83 9096332; E-mail: ben-benone@hotmail.com

Corresponding Author(s) : B. Ninwong1

Asian Journal of Chemistry, Vol 26 No Supplementary Issue

Abstract

A colorimetric method has been developed for determination of Fe(II) by paper-based microfluidic devices (μPADs). The analytical device is easily constructed using wax-printing on filter paper with was indicated that hydrophobic zone. Fe(II) was detected by the reaction of Fe(II) and 1,10-phenanthroline which the red/orange ferroin complex [Fe(phen)3]2+ was formed. Under the optimum conditions, the linear range between the color intensity and the concentration were found to be 0.1-3.5 and 3.5-15 mg L-1, but with a different slope. The limits of detection were obtained at the concentrations as low as 0.07 mg L-1. The proposed method can be successfully applied to the determination of Fe(II) in drinking water sample. The recoveries were in the range 86.60-109.80 %. The present procedure provides rapid, sensitive and selective for detection of Fe(II), minimal reagent consumption, low cost, thus it is suitable for on-site environmental monitoring.

Keywords

Paper-based microfluidic devices Colorimetric method Drinking water.
Ninwong1, B., & Dungchai2, W. (2014). Determination of Fe(II) in Drinking Water by Paper-Based Microfluidic Devices with Colorimetric Sensing. Asian Journal of Chemistry, 26(27), 133–136. https://doi.org/10.14233/ajchem.2014.19029
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