Smartphone sensing of multiple heavy metal ion contaminants in drinking water

Hoang Nguyen; Ibrahim Misbah; Wei-Chuan Shih; Wei-Chuan Shih

doi:10.1364/ES.2020.EW3H.4

Optical Sensors and Sensing Congress
OSA Technical Digest (Optica Publishing Group, 2020),
paper EW3H.4
•https://doi.org/10.1364/ES.2020.EW3H.4

Smartphone sensing of multiple heavy metal ion contaminants in drinking water

Hoang Nguyen, Ibrahim Misbah, and Wei-Chuan Shih

Optics and Photonics for Sensing the Environment 2020

Washington, DC United States
22–26 June 2020
ISBN: 978-1-943580-78-1

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Sensing in Aqueous Environment (EW3H)

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H. Nguyen, I. Misbah, and W. Shih, "Smartphone sensing of multiple heavy metal ion contaminants in drinking water," in Optical Sensors and Sensing Congress, OSA Technical Digest (Optica Publishing Group, 2020), paper EW3H.4.

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Abstract

We report an array-based smartphone sensor for multiplex detection and quantitation of lead and mercury ions in drinking water without the addition of any solution reagent. The detection limits for lead and mercury are below EPA action levels at 15 ppb and 2 ppb, respectively.

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