Detection of hexavalent chromium in aqueous solutions using laser-induced fluorescence from ion exchanged resin

被引：1
作者：
Wu, Lidong [1 ]
Xia, Jinan [1 ]
Fang, Zhonghua [2 ]
Pan, Junjie [1 ]
Qiao, Kecheng [1 ]
机构：
[1] Shanghai Univ Engn Sci, Sch Math Phys & Stat, Shanghai, Peoples R China
[2] Shanghai Univ Engn Sci, Sch Elect & Elect Engn, Shanghai, Peoples R China
来源：
OPTICAL ENGINEERING | 2024年 / 63卷 / 05期
关键词：
hexavalent chromium; laser-induced fluorescence; solid-phase extraction; ion-exchange resin; aqueous solutions; SENSITIVE DETECTION; REMOVAL; CR(VI); WATER; SORPTION; PH;
D O I：
10.1117/1.OE.63.5.054115
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The chemicals with hexavalent chromium are potential carcinogens, and they may disrupt deoxyribonucleic acid transcription, causing chromosomal abnormalities. However, it is hard to quickly determine accurate hexavalent chromium contents in aqueous solutions due to weak signal and intense noise. We showed rapid determination of hexavalent chromium contents in aqueous solutions with high accuracy, based on laser-induced fluorescence spectroscopy combined with selective enrichment of aqueous solutions using D301 resin. The adsorption time and pH values of the sample solutions were examined to effectively enrich the hexavalent chromium from aqueous solutions for the detection. The limits of detection of chromium (VI) were 0.0032 mg/L. The results showed that the combination of laser-induced fluorescence and Cr selective enrichment using D301 resin could accurately quantify hexavalent chromium contents in aqueous solutions. (c) 2024 Society of Photo-Optical Instrumentation Engineers (SPIE)
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页数：9
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