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A Quinoxaline-Naphthaldehyde Conjugate for Colorimetric Determination of Copper Ion.

ABSTRACT: This work facilitates detection of bivalent copper ion by a simple Schiff base probe QNH based on a quinoxaline-naphthaldehyde framework. The detailed study in absorption spectroscopy and theoretical aspects and crystal study of the probe and probe-copper complex has been discussed. The detection limit of the probe in the presence of Cu²⁺ is 0.45 µM in HEPES-buffer/acetonitrile (3/7, v/v) medium for absorption study. The reversibility of the probe-copper complex has been investigated by EDTA. The selective visual detection of copper has been established also in gel form.

SUBMITTER: Sahu S

PROVIDER: S-EPMC9105850 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature

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A Quinoxaline-Naphthaldehyde Conjugate for Colorimetric Determination of Copper Ion.

Sahu Sutapa S Sikdar Yeasin Y Bag Riya R Drew Michael G B MGB Cerón-Carrasco José P JP Goswami Sanchita S

Molecules (Basel, Switzerland) 20220503 9

This work facilitates detection of bivalent copper ion by a simple Schiff base probe QNH based on a quinoxaline-naphthaldehyde framework. The detailed study in absorption spectroscopy and theoretical aspects and crystal study of the probe and probe-copper complex has been discussed. The detection limit of the probe in the presence of Cu2+ is 0.45 µM in HEPES-buffer/acetonitrile (3/7, v/v) medium for absorption study. The reversibility of the probe-copper complex has been ...[more]

PMID: 35566259

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