| 电感耦合等离子体质谱法测定固体尿中碘 |
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| 引用本文： | 于桂兰,郑晓婕,王骏,侯建荣,胡毅志. 电感耦合等离子体质谱法测定固体尿中碘[J]. 预防医学情报杂志, 2011, 27(1): 75-77 |
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| 作者姓名： | 于桂兰 郑晓婕 王骏 侯建荣 胡毅志 |
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| 作者单位： | 1. 广州市疾病控制中心,广东广州,510080
2. 四川大学 |
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| 摘 要： | 目的为调查尿碘水平,建立电感耦合等离子体质谱法测定固体尿中碘的分析方法。方法样品经1%NH3.H2O溶解后直接用电感耦合等离子体质谱进行分析,测定过程中用耐高盐接口（Xi接口）、基体匹配和内标法消除非质谱干扰。结果方法的检出限小于0.00 5 mg/kg,精密度优于1.5%,回收率为97.6%（102%）结论该方法简单、快速和准确。
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| 关 键 词： | 电感耦合等离子体质谱法 尿 碘 |
Determination of Iodine in Urine by Inductively Coupled Plasma Mass Spectrometry |
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| YU Gui-lan,ZHENG Xiao-jie,WANG Jun,et al.. Determination of Iodine in Urine by Inductively Coupled Plasma Mass Spectrometry[J]. Journal of Preventive Medicine Information, 2011, 27(1): 75-77 |
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| Authors: | YU Gui-lan ZHENG Xiao-jie WANG Jun et al. |
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| Affiliation: | YU Gui-lan1,ZHENG Xiao-jie2,WANG Jun2,et al. Guangzhou Municipal Center for Disease Control and Prevention,Guangzhou 510080,Guangdong Province,China.Sichuan University,Chengdu 610207,Sichuan Province,China. |
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| Abstract: | Objective To investigate the concentration level of iodine in urine,a method of inductively coupled plasma mass spectrometry for the determination of iodine in solid urine was developed.Methods After dissolved by 1%NH3·H2O,the samples were directly determined by inductively coupled plasma mass spectrometry using Xi interface,matrix matching and internal standardization to eliminate non-spectroscopic interference.Results The detection limit of the method was less than 0.005 mg/kg and its RSDs were higher than 1.5%,with the recoveries of 97.6%（102%）.Conclusion This method is simple,sensitive and accurate. |
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| Keywords: | inductively coupled plasma mass spectrometry urine iodine |
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