Separation and isotopic determination of lithium in natural samples
文献类型：期刊论文
| 作者 | Wang Qilian; Zhao Zhiqi; Liu Congqiang; Ling Hongwen |
| 刊名 | CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
 |
| 出版日期 | 2006-06-01 |
| 卷号 | 34期号:6页码:764-768 |
| 关键词 | Lithium Isotope Measurement Separation Inductively Coupled Plasma-mass Spectrometry Natural Samples |
| ISSN号 | 0253-3820 |
| 英文摘要 | The solution of standard reference materials, lithium, potassium, calcium., sodium and magnesium, was used to evaluate analytical methods applied. Lithium was enriched in different eluents (hydrochloric acid, nitric acid and mixture with ethanol or methanol) by cation exchange resin AG 50W-X8 (0.032-0.098 mm), and the optimum experimental conditions were studied. Through comparative method of different eluents, an effective separation lithium from large amounts of other metal ions can be performed quantitatively on single a column (30 cm x 0.8 cm i.d.). The separate method was employed to the determination of lithium in some natural samples (water, rock and soil) by the multiple collector inductively coupled plasma-mass spectrometry (ICP-MS). The precision of all samples was 0.196-1.0 parts per thousand. Based on the comparison of measuring two series of our in-house standard, we found that the isotopic fractionation of the chemical procedure is less than 0.3 parts per thousand, which is in the same magnitude of the outer precision (2 sigma). Hence, the contribution of blank lithium to the isotopic composition of lithium in samples could be neglected. The delta Li-7 value of seawater ((31. 6 +/- 0) parts per thousand) revealed that both accuracy and precision of this procedure is consistent with that reported by others. According to the experiments, it is concluded that this proposed procedure is a suitable method for determining the lithium isotopic composition of natural samples. |
| 语种 | 英语 |
| WOS记录号 | WOS:000240869900005 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/59689]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Wang Qilian |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Environm Geochem, Inst Chem, Guiyang 550002, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang Qilian,Zhao Zhiqi,Liu Congqiang,et al. Separation and isotopic determination of lithium in natural samples[J]. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,2006,34(6):764-768. |
| APA | Wang Qilian,Zhao Zhiqi,Liu Congqiang,&Ling Hongwen.(2006).Separation and isotopic determination of lithium in natural samples.CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,34(6),764-768. |
| MLA | Wang Qilian,et al."Separation and isotopic determination of lithium in natural samples".CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 34.6(2006):764-768. |
入库方式： OAI收割
来源：化学研究所
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