Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance work on Wednesday 21st October 2020 from 07:00 AM to 07:00 PM (BST).

During this time our website performance may be temporarily affected. We apologise for any inconvenience this might cause and thank you for your patience.



A novel colorimetric probe with positive correlation between toxicity and the reaction for the assessment of chromium ions

Author affiliations

Abstract

Different valence states of chromium ions possess huge differences in toxicity. Hence, it is an innovative idea to design a reasonable probe to detect Cr according to the toxicity characteristics of different valence states. We report a novel, rapid, simple and accurate probe for the detection of Cr3+ and Cr6+ ions. As a probe, gold nanoparticles (Au NPs) are successfully modified using tartaric acid (TA) and 2-[4-(2-hydroxyethyl)-1-piperazinyl] ethanesulfonic acid (HEPES) via a two-step modification; the probe shows an increase in the sensitivity towards Cr6+ and decreases towards Cr3+, which is consistent with their toxicity characteristics, benefiting the assessment of total Cr toxicity. The proposed probe achieves considerable two-channel (ultraviolet absorption spectrum and naked eye vision) detection of Cr3+ and Cr6+ providing wide linearity regions and low detection limits. Meanwhile, the results of the interference experiments and analysis of the real samples showed high selectivity and accuracy of the proposed method. With popularization, this method possesses great potential in environmental monitoring and control.

Graphical abstract: A novel colorimetric probe with positive correlation between toxicity and the reaction for the assessment of chromium ions

Back to tab navigation

Supplementary files

Article information


Submitted
05 Jul 2020
Accepted
17 Aug 2020
First published
24 Sep 2020

Anal. Methods, 2020, Advance Article
Article type
Paper

A novel colorimetric probe with positive correlation between toxicity and the reaction for the assessment of chromium ions

J. Hou, Z. Shui, J. Li, D. Huo, X. Tang, C. Yu, Q. He and C. Qiao, Anal. Methods, 2020, Advance Article , DOI: 10.1039/D0AY01291B

Social activity

Search articles by author

Spotlight

Advertisements