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| 电感耦合等离子体质谱法测定食品中铀及其同位素比值 | |
| 引用本文： | 彭荣飞,张林,周洪伟,黄聪,潘心红. 电感耦合等离子体质谱法测定食品中铀及其同位素比值[J]. 中国卫生检验杂志, 2012, 0(6): 1211-1213 |
| 作者姓名： | 彭荣飞 张林 周洪伟 黄聪 潘心红 |
| 作者单位： | 广东省广州市疾病预防控制中心 |
| 基金项目： | 广东省科技计划项目(2001B031200010);广东省医学科研课题(A2011504);广州市医学科研课题(201102A213051) |
| 摘 要： | 目的:建立食品中铀及其同位素比值的分析方法。方法:食品经湿法消化后直接用ICP-MS进行分析。结果:总铀的测定的精密度优于1.5%、检出限小于0.02μg/kg,加标回收为94.8%～101%;235 U/238 U同位素比值测定的精密度优于0.8%,标准物质的分析结果和证书值一致。结论:可采用ICP-MS准确测定食品中的铀及其同位素比值,方法简便、快速、准确。 |
| 关 键 词： | 电感耦合等离子体质谱法 铀 同位素比值 食品 |
Determination of uranium and its isotope ratio in food by inductively coupled plasma mass spectrometry |
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| PENG Rong-fei,ZHANG Lin,ZHOU Hong-wei,HUANG Cong,PAN Xin-hong. Determination of uranium and its isotope ratio in food by inductively coupled plasma mass spectrometry[J]. Chinses Journal of Health Laboratory Technology, 2012, 0(6): 1211-1213 | |
| Authors: | PENG Rong-fei ZHANG Lin ZHOU Hong-wei HUANG Cong PAN Xin-hong |
| Affiliation: | (Guangzhou Center for Disease Control and Prevention,Guangzhou 510440,China) |
| Abstract: | Objective:To develop an analytical method for determination of uranium and its isotope ratio in food by inductively coupled plasma mass spectrometry.Methods:The samples were directly determined by inductively coupled plasma mass spectrometry after digestion.Results:The detection limit,RSDs and recoveries of total uranium were 0.02 μg/kg,1.5% and 94.8%～101% respectively,RSD of isotope ratio of 235U/238U was better than 0.8%,the analytical results of standard materiel were satisfactory.Conclusion:This method is simple,rapid and accuracy,and can determine uranium and its isotope ration in food. |
| Keywords: | Inductively coupled plasma mass spectrometry Uranium Isotope ratio Food |
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