ISL OpenIR  > 青海盐湖研究所知识仓储
Determination of boron content and isotopic composition in gypsum by inductively coupled plasma optical emission spectroscopy and positive thermal ionization mass spectrometry using phase transformation
Ma, Yun-Qi1,2; Peng, Zhang-Kuang1,3; Yang, Jian1,3; Xiao, Ying-Kai1; Zhang, Yan-Ling1
2017-12-01
Source PublicationTALANTA
Volume175Pages:250-255
SubtypeArticle
AbstractAs 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.
KeywordGypsum Phase Transformation Icp-oes P-tims Boron Isotope
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordTRACE-ELEMENTS ; QAIDAM BASIN ; SALT LAKES ; TEMPERATURE ; EVAPORITES ; MARINE ; ORIGIN ; CHINA ; PH ; FRACTIONATION
Indexed BySCI
Language英语
WOS Research AreaChemistry
WOS SubjectChemistry, Analytical
WOS IDWOS:000412033100033
Citation statistics
Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/6259
Collection青海盐湖研究所知识仓储
盐湖地质与环境实验室
Affiliation1.Chinese Acad Sci, Lab Salt Lake Geol & Environm, Qinghai Inst Salt Lakes, Northwest Inst Ecoenvironm & Resources, Xining 810008, Qinghai, Peoples R China
2.Chinese Acad Sci, Salt Lake Chem Analyzing & Testing Ctr, Qinghai Inst Salt Lakes, Northwest Inst Ecoenvironm & Resources, Xining 810008, Qinghai, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
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 spectroscopy and positive thermal ionization mass spectrometry using phase transformation[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 spectroscopy and positive thermal ionization mass spectrometry using phase transformation.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 spectroscopy and positive thermal ionization mass spectrometry using phase transformation".TALANTA 175(2017):250-255.
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