Ultra-rapid and highly selective colorimetric detection of hydrochloric acid an aggregation to dispersion change of gold nanoparticles.

Kehui Zhang Mingyue Luo Honghong Rao Haile Liu Ruibin Qiang Xin Xue Jianying Li Xiaoquan Lu Zhonghua Xue

Chem Commun (Camb)

Key Laboratory of Water Security and Water Environment Protection in Plateau Intersection (NWNU), Ministry of Education, Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou, 730070, China.

Published: March 2024

Researchers developed a quick and efficient method to detect hydrochloric acid (HCl) without needing special equipment.
The detection relies on the redispersion of gold nanoparticles, which clump together when HCl is present.
This method allows for easy observation of HCl in water just by looking at the color change of the nanoparticle solution.

A rapid and highly selective naked-eye detection of hydrochloric acid (HCl) in an aqueous medium was established using HCl-triggered redispersion of gold nanoparticle aggregates.

Download full-text PDF	Source
http://dx.doi.org/10.1039/d3cc06343g	DOI Listing

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