Determination of boron content and isotopic composition in gypsum by inductively coupled plasma optical emission

doi:10.1016/j.talanta.2017.07.006

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	Determination of boron content and isotopic composition in gypsum by inductively coupled plasma optical emission
	Ma, Yun-Qi; Peng, Zhang-Kuang; Yang, Jian; Xiao, Ying-Kai; Zhang, Yan-Ling
第一作者	Ma, Yun-Qi
	2017-10-01
发表期刊	TALANTA
ISSN	0039-9140
卷号	175 页码:250-255
摘要	As a stable isotope, boron plays an important role in hydrogeology, environmental geochemistry, ore deposit geochemistry and marine paleoclimatology. However, there is no report of boron isotopic composition in gypsum. This is mainly confined to complete dissolution of Gypsum by water or acid. In this study, gypsum was converted to calcium carbonate (CaCO3) with ammonium bicarbonate(NH4HCO3) by two steps at 50 degrees C. In every step, the mass ratio of NH4HCO3/CaSO4 center dot 2H(2)O was twice, and conversion rate reached more than 98%. Converted CaCO3 was totally dissolved with hydrochloric acid (the dissolution rate was over 99%). In order to overcome the difficulties of the matrix interference and the detection limit of Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES), we use Amberlite IRA 743 resin to purify and enrichment the boron at first, then eluting boron from the resin with 10 mL 0.1 mol/L hydrochloric acid at 75 degrees C. The boron isotopic composition of natural gypsum samples was determined using positive thermal ionization mass spectrometry (P-TIMS). The boron isotopic composition of gypsum may be an excellent indicator for the formation environment.
DOI	10.1016/j.talanta.2017.07.006
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/34571
专题	支撑部门
推荐引用方式 GB/T 7714	Ma, Yun-Qi,Peng, Zhang-Kuang,Yang, Jian,et al. Determination of boron content and isotopic composition in gypsum by inductively coupled plasma optical emission[J]. TALANTA,2017,175:250-255.
APA	Ma, Yun-Qi,Peng, Zhang-Kuang,Yang, Jian,Xiao, Ying-Kai,&Zhang, Yan-Ling.(2017).Determination of boron content and isotopic composition in gypsum by inductively coupled plasma optical emission.TALANTA,175,250-255.
MLA	Ma, Yun-Qi,et al."Determination of boron content and isotopic composition in gypsum by inductively coupled plasma optical emission".TALANTA 175(2017):250-255.

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