Measurements of lithium isotopic compositions in coal using MC-ICP-MS

doi:10.1039/c9ja00204a

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	Measurements of lithium isotopic compositions in coal using MC-ICP-MS
	He, Mao-Yong 1,2,3; Luo, Chong-guang 4; Lu, Hai 5; Jin, Zhang Dong 1,2; Deng, Li 1,6
通讯作者	He, Mao-Yong(hemy@ieecas.cn) ; Jin, Zhang Dong(zhdjin@ieecas.cn)
	2019-09-01
发表期刊	JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
ISSN	0267-9477
卷号	34 期号:9 页码:1773-1778
摘要	Lithium is a very important metal for energy production. Lithium isotopes can be used to trace the source of fossil fuels that contribute to atmospheric haze and examine the occurrence and concentration of lithium in coal deposits. In this study, a microwave digestion method for coal decomposition using HNO3 + HF and H3BO3 acid systems was evaluated. The results demonstrated that coal was completely decomposed when these acids were used and the microwave program run in two steps. Three coal reference materials with different lithium concentrations (SARM18, SARM19 and SARM20) and four samples of Li-bearing coal from the Guanbanwusu Mine (China) were analyzed and the lithium isotopic composition was determined using MC-ICP-MS. Li isotope data were obtained with an intermediate precision better than +/- 0.30 parts per thousand. The delta Li-7 values determined for SARM18, SARM19 and SARM20 were 1.35 +/- 0.23 parts per thousand, 2.16 +/- 0.27 parts per thousand and 1.48 +/- 0.17 parts per thousand, respectively. The non-certified coal samples revealed a similar range in lithium isotopes (delta Li-7 = 6.02 parts per thousand to 6.77 parts per thousand) suggesting limited lithium isotope fractionation in coal locally, which could be useful for tracing atmospheric haze and contaminated waters in the environment. The comprehensive data and procedures in this study can be considered as a reference for conducting Li isotope determination in coal.
DOI	10.1039/c9ja00204a
关键词[WOS]	TRACE-ELEMENTS ; MICROWAVE DIGESTION ; HYDROGEN-PEROXIDE ; ACID DIGESTION ; FLY-ASH ; LI ; EXTRACTION ; ACCURATE ; PRECISE ; OPTIMIZATION
收录类别	SCI ; SCI
语种	英语
资助项目	National Research Program for Key Issues in Air Pollution Control[DQGG0105] ; National Natural Science Foundation of China[41573013] ; National Natural Science Foundation of China[U1407109] ; Natural Science Fund of Shaanxi Province[2015JM4143]
WOS研究方向	Chemistry ; Spectroscopy
项目资助者	National Research Program for Key Issues in Air Pollution Control ; National Natural Science Foundation of China ; Natural Science Fund of Shaanxi Province
WOS类目	Chemistry, Analytical ; Spectroscopy
WOS记录号	WOS:000483699100003
出版者	ROYAL SOC CHEMISTRY
引用统计	被引频次：17[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/13418
专题	加速器质谱中心第四纪科学与全球变化卓越创新中心
通讯作者	He, Mao-Yong; Jin, Zhang Dong
作者单位	1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China 2.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Shaanxi, Peoples R China 3.Univ Washington, Dept Earth & Space Sci, Isotope Lab, Seattle, WA 98195 USA 4.Chinese Acad Sci, Inst Geochem, State Key Lab Ore Deposit Geochem, Guiyang 550002, Guizhou, Peoples R China 5.Natl Inst Metrol, Div Chem Metrol & Analyt Sci, Beijing 10013, Peoples R China 6.Shaanxi Key Lab Accelerator Mass Spectrometry Tec, Xian 710061, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	He, Mao-Yong,Luo, Chong-guang,Lu, Hai,et al. Measurements of lithium isotopic compositions in coal using MC-ICP-MS[J]. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,2019,34(9):1773-1778.
APA	He, Mao-Yong,Luo, Chong-guang,Lu, Hai,Jin, Zhang Dong,&Deng, Li.(2019).Measurements of lithium isotopic compositions in coal using MC-ICP-MS.JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,34(9),1773-1778.
MLA	He, Mao-Yong,et al."Measurements of lithium isotopic compositions in coal using MC-ICP-MS".JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY 34.9(2019):1773-1778.