Determination of Bromine in Brine by Wavelength Dispersive X-ray Fluorescence Spectrometry with Film Adsorption Pretreatment

CHEN Jing-wei; SONG Jiang-tao; ZHAO Qing-ling; SONG Shuang-xi; TANG Yun-zhi; GENG Nan

doi:10.15898/j.cnki.11-2131/td.2015.05.012

2015 Vol. 34, No. 5

Article Contents

Article navigation > Rock and Mineral Analysis > 2015 > 34(5): 570-574

Next Article Previous Article

CHEN Jing-wei, SONG Jiang-tao, ZHAO Qing-ling, SONG Shuang-xi, TANG Yun-zhi, GENG Nan. Determination of Bromine in Brine by Wavelength Dispersive X-ray Fluorescence Spectrometry with Film Adsorption Pretreatment[J]. Rock and Mineral Analysis, 2015, 34(5): 570-574. doi: 10.15898/j.cnki.11-2131/td.2015.05.012

Citation:

CHEN Jing-wei, SONG Jiang-tao, ZHAO Qing-ling, SONG Shuang-xi, TANG Yun-zhi, GENG Nan. Determination of Bromine in Brine by Wavelength Dispersive X-ray Fluorescence Spectrometry with Film Adsorption Pretreatment[J]. Rock and Mineral Analysis, 2015, 34(5): 570-574. doi: 10.15898/j.cnki.11-2131/td.2015.05.012

Determination of Bromine in Brine by Wavelength Dispersive X-ray Fluorescence Spectrometry with Film Adsorption Pretreatment

1.
Fourth Exploration Institute of Geology and Mineral Resources, Weifang 261021, China
2.
Lunan Geo-engineering Exploration Institute of Shandong Province, Yanzhou 272100, China

More Information

Corresponding author: ZHAO Qing-ling, zqlzb@126.com

Received Date: 02 September 2014

Revised Date: 09 May 2015

Accepted Date: 30 August 2015

Publish Date: 25 May 2015

Abstract

Abstract

Bromine exists mainly as ions in bromide brine and halide sulfate brine in the hydrosphere of the crust. Powder carrier pellet method is commonly used in analyzing bromine in brine by Wavelength Dispersive X-ray Fluorescence Spectrometry (WDXRF). However, this sample preparation method has the disadvantages of large work load, sample inhomogeneity and outer contamination, which affects the analytical accuracy. Samples were pretreated by film adsorption, and film material and sample weight were optimized and are reported in this paper. Firstly, 50 μL of brine is dropped to the center of a chromatography filter paper (Ф=40 mm), air dried, and then flattened by high pressure to prepare the film sample for WDXRF test. A standard curve of Br was calibrated by self-prepared standard solution. Experimental results show that the impact of coexisting ions such as K⁺, Na⁺, Ca²⁺, Mg²⁺, Cl^- and SO₄^2- on the detection of Br is negligible. The detection limit of this method is 0.95 mg/L, the precision is less than 0.8% (n=11), and the recoveries are 99.4%-101.2%. The new sample preparation method is very economical and easy to operate, avoiding the use of chemical reagent.
- brine /
- bromine /
- thin film adsorption /
- X-ray Fluorescence Spectrometry

FullText(HTML)

References

[1]	doi: 10.3975/cagsb.2013.05.12
[2]	http://www.cnki.com.cn/Article/CJFDTOTAL-KCDZ201306016.htm
[3]	http://www.cnki.com.cn/Article/CJFDTOTAL-SWDG201305004.htm
[4]	http://www.cnki.com.cn/Article/CJFDTOTAL-LHJH201204036.htm
[5]	http://www.cnki.com.cn/Article/CJFDTOTAL-LHJH200912034.htm
[6]	http://www.cnki.com.cn/Article/CJFDTOTAL-LHJH201307009.htm
[7]	http://www.cnki.com.cn/Article/CJFDTOTAL-YKCS201303027.htm
[8]	http://www.cnki.com.cn/Article/CJFDTOTAL-YKCS201104027.htm
[9]	蒯丽君. 化学前处理-能量色散X射线荧光光谱法应用于矿石及水体现场分析[D]. 北京: 中国地质科学院, 2013 Google Scholar Kuai L J. Application of Energy Dispersive X-ray Fluorescence Spectrometry Combined with Sample Chemical Pretreatment in Ores and Water[D]. Beijing: Chinese Academy of Geological Sciences, 2013 Google Scholar
[10]	http://www.cnki.com.cn/Article/CJFDTOTAL-GXXB201407044.htm
[11]	http://www.cnki.com.cn/Article/CJFDTOTAL-YKCS201001024.htm
[12]	doi: 10.1016/j.sab.2012.05.006
[13]	doi: 10.1016/j.aca.2013.11.045