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- Title
Rapid Determination of Cr 3+ and Mn 2+ in Water Using Laser-Induced Breakdown Spectroscopy Combined with Filter Paper Modified with Gold Nanoclusters.
- Authors
Dai, Xuan; Song, Changbo; Ma, Shixiang; Cao, Fengjing; Dong, Daming
- Abstract
Excessive emissions of heavy metals not only cause environmental pollution but also pose a direct threat to human health. Therefore, rapid and accurate detection of heavy metals in the environment is of great significance. Herein, we propose a method based on laser-induced breakdown spectroscopy (LIBS) combined with filter paper modified with bovine serum albumin-protected gold nanoclusters (LIBS-FP-AuNCs) for the rapid and sensitive detection of Cr3+ and Mn2+. The filter paper modified with AuNCs was used to selectively enrich Cr3+ and Mn2+. Combined with the multi-element detection capability of LIBS, this method achieved the simultaneous rapid detection of Cr3+ and Mn2+. Both elements showed linear ranges for concentrations of 10–1000 μg L−1, with limits of detection of 7.5 and 9.0 μg L−1 for Cr3+ and Mn2+, respectively. This method was successfully applied to the determination of Cr3+ and Mn2+ in real water samples, with satisfactory recoveries ranging from 94.6% to 105.1%. This method has potential application in the analysis of heavy metal pollution.
- Subjects
LASER-induced breakdown spectroscopy; GOLD clusters; FILTER paper; HEAVY metal toxicology; ANALYSIS of heavy metals; GOLD mining
- Publication
Biosensors (2079-6374), 2024, Vol 14, Issue 6, p267
- ISSN
2079-6374
- Publication type
Article
- DOI
10.3390/bios14060267