Issue 21, 2023

Rapid and visual detection of dichloroacetonitrile in water

Abstract

Dichloroacetonitrile (DCAN) is a common biotoxic disinfection by-product (DBP) of chlorine. The current methods used for detecting DCAN are tedious and heavily instrument-dependent, and are not suitable for on-site detection. In the present study, we developed a colorimetric assay for rapid detection of DCAN. DCAN in water acted as a complexing agent that formed a complex with cuprous species. The cuprous species was then extracted by chloroform and visualized using dithizone. The visual detection limit for DCAN was 20 ng mL−1, while fluorescence quantification could detect DCAN at a concentration as low as 8.75 ng mL−1. Moreover, haloacetonitriles (HANs) derived from chlorine disinfection and structurally similar to DCAN, including TCAN, BCAN, and DBAN, could also be detected using this method. Other DBPs at concentrations as high as 200 ng mL−1 did not affect the detection process. The low cost and instrument-independence characteristic of the present method enables its routine determination of the concentration of DCAN in water.

Graphical abstract: Rapid and visual detection of dichloroacetonitrile in water

Article information

Article type
Paper
Submitted
27 Шіл. 2023
Accepted
07 Қыр. 2023
First published
08 Қыр. 2023

Analyst, 2023,148, 5390-5394

Rapid and visual detection of dichloroacetonitrile in water

J. Zhong, H. Zhang, Y. Cai, X. Chen, Z. Fang and D. Deng, Analyst, 2023, 148, 5390 DOI: 10.1039/D3AN01282D

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements