Determination of Low Level Uranium Isotopes in Vegetation Samples
文献类型：期刊论文
| 作者 | Lu Tong1,2,3; Hou Xiao-Lin1,3; Zhang Lu-Yuan1,3; Chen Ning1,2,3; Zhang Wei-Chao1,2,3; Wang Yan-Yun1,2,3 |
| 刊名 | CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
 |
| 出版日期 | 2018-07-01 |
| 卷号 | 46期号:7页码:1137-1144 |
| 关键词 | Uranium Isotope ratio Vegetation samples Solid phase extraction Inductively coupled plasma tandem mass spectrometry |
| ISSN号 | 0253-3820 |
| DOI | 10.11895/j.issn.0253.3820.181098 |
| 通讯作者 | Hou Xiao-Lin(houxl@ieecas.cn) |
| 英文摘要 | An analytical method was developed for determination of low-level uranium isotopes in vegetation samples. Dry ashing method was employed to decompose organic matters of vegetation. The sample ash was further digested using multiple acids. Uranium in the prepared sample solution was separated and purified by an extraction chromatography using UTEVA resin. The chemical recovery of uranium in the separation procedure was more than 94%, and more than 99% of Na, K, Ca and other matrix elements and interfering elements were removed. Three natural uranium isotopes were finally measured with high sensitivity ICP-MS/ MS. The detection limits of the method for 238 U 235 U, 234 U were 3. 05, 0. 34 and 0.04 pg/g, respectively. The detection limits for 238 U and 235 U were 10 times better than the reported values. Analysis result of U in GBW-10046 standard reference material was in good agreement with reference value, indicating that this method was reliable. The method was successfully applied to determination of uranium isotopes in the vegetation samples collected in Xi'an region, and it was found that the uranium concentrations and isotopic ratios in these vegetation samples fall well into natural level, and there was no significant artificial uranium contamination. This was the first survey of the three natural uranium isotopes in vegetation samples in this region. |
| WOS关键词 | TRACE-ELEMENTS ; PLANT-SAMPLES ; ION-EXCHANGE ; EXTRACTION ; THORIUM ; SEPARATION ; RATIOS ; SOIL ; PRECONCENTRATION ; WATER |
| 资助项目 | Ministry of Science and Technology of China[2015FY110800] ; National Natural Science Foundation of China[11605207] ; State Key Laboratory of Loess and Quaternary Geology |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000455905900016 |
| 出版者 | ELSEVIER SCIENCE INC |
| 资助机构 | Ministry of Science and Technology of China ; National Natural Science Foundation of China ; State Key Laboratory of Loess and Quaternary Geology |
| 源URL | [http://ir.ieecas.cn/handle/361006/14424]  |
| 专题 | 地球环境研究所_加速器质谱中心 |
| 通讯作者 | Hou Xiao-Lin |
| 作者单位 | 1.Xian Accelerator Mass Spectrometer Ctr, Shaanxi Key Lab Accelerator Mass Spectrometry Tec, Xian 710061, Shaanxi, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu Tong,Hou Xiao-Lin,Zhang Lu-Yuan,et al. Determination of Low Level Uranium Isotopes in Vegetation Samples[J]. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,2018,46(7):1137-1144. |
| APA | Lu Tong,Hou Xiao-Lin,Zhang Lu-Yuan,Chen Ning,Zhang Wei-Chao,&Wang Yan-Yun.(2018).Determination of Low Level Uranium Isotopes in Vegetation Samples.CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,46(7),1137-1144. |
| MLA | Lu Tong,et al."Determination of Low Level Uranium Isotopes in Vegetation Samples".CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 46.7(2018):1137-1144. |
入库方式： OAI收割
来源：地球环境研究所
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