A colorimetric method of As 3+ ion detection and quantification using hand-held Lovibond photometers

Among the existing forms of arsenic, As 3+ compounds are the most abundant and toxic in the environment. In the present study, we design a colorimetric method that selectively detects arsenite ions in aqueous media using fuchsine as an indicator. The novelty of this method lies in the use of Lovibon...

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Bibliographic Details
Published in:Journal of physics. Conference series 2022-07, Vol.2315 (1), p.12031
Main Authors: Kumar, R., Rauwel, P., Kriipsalu, M., Rauwel, E.
Format: Article
Language:English
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Summary:Among the existing forms of arsenic, As 3+ compounds are the most abundant and toxic in the environment. In the present study, we design a colorimetric method that selectively detects arsenite ions in aqueous media using fuchsine as an indicator. The novelty of this method lies in the use of Lovibond MD-610 hand-held photometer in order to determine the absorptivity at a wavelength of 560 nm. Subsequently a calibration curve for various known As 3+ concentrations was plotted using Lambert-Beer’s law. The arsenite concentrations studied ranged from 0.2-10 ppm.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2315/1/012031