Measurements of lithium isotopic compositions in coal using MC-ICP-MS | |
He, Mao-Yong1,2,3; Luo, Chong-guang4; Lu, Hai5; Jin, Zhang Dong1,2; Deng, Li1,6 | |
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 | |
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. |
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