On-Site Analysis of Heavy Metals in Water with Handheld X-Ray Fluorescence and Pre-Concentration Device without External Power Supply

• Published in: Guang pu xue yu guang pu fen xi Vol. 37; no. 1; p. 267
• Main Authors: Jiao, Ju, Zhan, Xiu-chun, Zhai, Lei, Fan, Xing-tao, Wen, Hong-li, Yuan, Ji-hai, Liu, Xiao, Guo, Shu
• Format: Journal Article
• Language: Chinese
• Published: China 01.01.2017
• ISSN: 1000-0593
• DOI: 10.3964/j.issn.1000-0593(2017)01-0267-06

Currently, increasing importance has been attached to heavy metal pollution of water environment. In order to help geologist and environmentalist to obtain on-site experimental data, there is an urgent need to develop portable analysis techniques of water quality, which can be used to give an timely and accurate assessment of water quality of the contaminated area with low cost and to monitor water environment conveniently in daily preventing and controlling work of water pollution. Based on adsorption with Purolite S930 chelating resin at pH 4 and thin-film sample preparation technique, a rapid and simple on-site-oriented analysis method of heavy metal ions, namely Mn, Fe, Ni, Cu, Zn and Pb in aqueous solutions, was developed utilizing a handheld energy-dispersive X-ray fluorescence in this paper. The correlation coefficients of the calibration curves were greater than 0.992 for all six metal ions, the lower limits of detection were between 5.8 and 18.6 μg·L-1. Precision tests carried out on multi-element mi