Detection of glyphosate with a copper()-pyrocatechol violet based GlyPKit

This paper describes the development of a test kit for the selective detection of glyphosate (GlyP). A copper( ii )-pyrocatechol violet complex was selected by a screening approach from a pool of 96 combinations of metal ions and commercially available indicators and subsequently incorporated as a d...

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Published in:Analytical methods 2021-10, Vol.13 (38), p.4354-436
Main Authors: Yadav, Prerna, Zelder, Felix
Format: Article
Language:English
Subjects:
Benzenesulfonates
Catechol
Chemistry
Coordination compounds
Copper
Copper compounds
Drinking water
Glycine - analogs & derivatives
Glyphosate
Hydrophobicity
Metal ions
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Zelder, Felix
description This paper describes the development of a test kit for the selective detection of glyphosate (GlyP). A copper( ii )-pyrocatechol violet complex was selected by a screening approach from a pool of 96 combinations of metal ions and commercially available indicators and subsequently incorporated as a detection zone into a hydrophobic C18 solid support. With this kit, detection of 20 μM GlyP in tap water by the "naked eye" is possible and quantifications by smartphone analysis with a limit of detection as low as 2.66 μM (450 μg L −1 ) have been demonstrated in a proof-of-principle study. This paper describes the development of a test kit for the naked-eye detection of glyphosate (GlyP) using a copper( ii )-pyrocatechol violet complex immobilized on a C18 solid support.
doi_str_mv 10.1039/d1ay01168e
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source Royal Society of Chemistry
subjects Benzenesulfonates
Catechol
Chemistry
Coordination compounds
Copper
Copper compounds
Drinking water
Glycine - analogs & derivatives
Glyphosate
Hydrophobicity
Metal ions
title Detection of glyphosate with a copper()-pyrocatechol violet based GlyPKit
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