Key Laboratory of Environment Optics and Technology, Chinese Academy of Sciences, Anhui Province Laboratory of Environment Optics Monitoring Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
Abstract:The present paper analyzed the characteristics of X-ray fluorescence spectroscopy (XRF) of metal element lead in soil using the NITON XLt793 portable X-ray fluorescence spectra of heavy metal analyzer under laboratory conditions. The characteristic spectral lines of Lα (energy:10.55 keV) and Lβ(energy:12.61 keV) with different matrix elements were selected respectively for lead in the experiment. By measuring the intensities of the characteristic spectral line with different Pb concentration, the results demonstrate that the relation between concentration [mass fraction 10×10-6~1 800×10-6] of Pb element and the intensity of the characteristic spectrum is well linear. The calibration curve of Pb was plotted based on the different concentration measurement results, and the limit of detection of 7.89×10-6 was obtained for Pb in soil.
[1] Julie Markus. Environment International, 2001, 27:399. [2] WANG Jin-da,LIU Jing-shuang,YU Jun-bao, et al(王金达,刘景双,于君宝,等). China Environmental Science(中国环境科学), 2003, 23(3): 300. [3] Chon H T, Kim K W, Kim J Y. Environmental Geochemistry and Health, 1995, 17: 139. [4] YANG Zhi-juan,HAO Jing-wu,YAO Jian,et al(杨稚娟,郝景吴,姚 健,等). Henan Chemical(河南化工),2006, 23(9): 43. [5] Tanja Radu, Dermot Diamond. Journal of Hazardous Materials, 2009, 171: 1168. [6] WU Jin-jian(吴金建). Fujian Analysis and Testing(福建分析测试),2005, 14(3):2228. [7] XU Hong-guang, GUAN Shi-cheng, FU Yuan-xia, et al (许洪光,管士成,傅院霞,等). Chinese Journal of Lasers(中国激光),2007, 34(4):577. [8] LIU Yan-de, WAN Chang-lan, SUN Xu-dong, et al(刘燕德,万常斓,孙旭东, 等). Laser and Infrared(激光与红外),2011, 41(6):605. [9] ZHANG Si-chong, ZHOU Xiao-cong, YE Hua-xiang, et al(张思冲,周晓聪,叶华香,等). Chinese Agricultural Science Bulletin(中国农学通报),2009, 25(13): 230. [10] HAN Ping, WANG Ji-hua, LU An-xiang, et al(韩 平,王纪华,陆安祥,等). Spectroscopy and Spectral Analysis(光谱学与光谱分析),2012, 32(3): 826. [11] JI Ang,TAO Guang-yi,ZHUO Shang-jun,et al(吉 昂,陶光仪,卓尚军,等). XRF Spectral Analysis(X射线荧光光谱分析). Beijing: Science Press (北京:科学出版社), 2003. 111, 135. [12] ZHUO Shang-jun, TAO Guang-yi, HAN Xiao-yuan (卓尚军,陶光仪,韩小元). X-Ray Fluorescence Spectra of the Fundamental Parameter Method(X射线荧光光谱的基本参数法). Shanghai:Shanghai Science and Technology Press(上海:上海科学技术出版社), 2010. 35. [13] LIANG Yu(梁 钰). Spectral Analysis Foundation of XRF(X射线荧光光谱分析基础). Beijing: Science Press(北京:科学出版社),2007. 86, 62, 189. [14] LIANG Gou-li,DENG Sai-wen,WU Xiao-jun,et al(梁国立,邓赛文,吴晓军,等). Rock and Mineral Analysis(岩矿测试), 2003, 23(4): 291.