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Analyst. 2019 Jun 21;144(12):3710-3715. doi: 10.1039/c9an00516a. Epub 2019 May 28.

A ZnS quantum dot-based super selective fluorescent chemosensor for soluble ppb-level total arsenic [As(iii) + As(v)] in aqueous media: direct assay utilizing aggregation-enhanced emission (AEE) for analytical application.

Author information

1
Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur-721302, India. mintu@chem.iitkgp.ac.in.

Abstract

This study brings out a novel, superselective detection employing thiosalicylic acid-capped ZnS-based quantum dots that display photoluminescence "turn-on" characteristics only in the presence of arsenic in the aquatic medium for the first time. It shows a splendid limit of detection of soluble arsenic down to a few ppb level, much below than the MCL reported value, without being interfered by any other ions.

PMID:
31134231
DOI:
10.1039/c9an00516a

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