电感耦合等离子体质谱法分析秦山核电站周边居民尿样

目的 获得核电站周边居民尿中元素含量的基础数据。方法 采集秦山核电站周围长期居住的35名健康成年人的尿样,利用ICP-MS法分析了尿样中的铀,钍,铷,铯,锶,砷,铅,钡,钴,铊和镉11种元素的含量,实验方法的检出限(DL)范围为0.002~0.046 μg/L,加标回收率范围为91.4%~118.8%。结果 所测元素结果的平均值和范围如下:铀:0.07μg/L,(小于检出限~0.97 μg/L);钍:0.54 μg/L(0.45~0.76 μg/L);铷:2736.06 μg/L(610.80~7174.71 μg/L);铯:11.30 μg/L(2.60~24.02 μg/L);锶:480.07 μg/L(129.79~1275.89 μg/L);砷:124.57 μg/L(13.63~501.21 μg/L);铅:31.10 μg/L(3.85~235.04 μg/L);钡:16.35 μg/L(1.64~82.64 μg/L);钴:0.82 μg/L(小于检出限~3.41 μg/L);铊:0.34 μg/L(小于检出限~1.87 μg/L);镉:1.23 μg/L(小于检出限~8.28 μg/L)。结论 与中国成年男子尿中元素含量相比,本研究结果均高于其结果。

Determination of Urine Samples in the Vicinity of Qinshan Nuclear Power Plants by ICP-MS

Objective To obtain the basic data of the trace elements in urines of the residents in the vicinity of Qinshan nuclear power plants. Methods The urine samples of 35 healthy adults , who were long- term residents in the vicinity of nuclear power plants ,were collected in ZheJiang province. Inductively coupled plasma mass spcctrometry （ ICP - MS） was applied to the determination of U, Th, Rb, Cs, Sr, As, Pb, Ba, Co, T1 and Cd by using Bi and In as internal standard. Instrumental operating parameters were optimized. The detection limit range was 0.002 ～ 0.0461μg/L. The recovery range was 91. 4% - 18.8%. It indicated that the method was accurate. Results The results show as followed： U ：0.07μg/L＇（ 〈 DL ～0.97 μg/L ） ; Th： 0.54 Iμ/L （ 0.45 - 0.76 μg/L） ; Rb： 2736.06 μg/L （ 610.80 - 7174.71 μg/L） ; Cs： 11.30 μg/L （ 2.60 ～ 24.02 μg/L） ;Sr：480.07 μg/L （ 129.79 ～ 1275.89μg/L） ; As： 124. 57μg/L （ 13.63 - 501.21μg/L） ; Pb：31. 101μg/L （3.85 ～ 235.04 μg/L） ; Ba：16.35 μg/L （1.64～82.64μg/L） ; Co：0.82μg/L （ 〈DL～3.41 μg/L） ;T1：0.34μg/L （ 〈DL～I. 87 μg/L） ; Cd ： 1.23 μg/L （ 〈 DL - 8.28 μg/L）. Conclusion The results of this study were higher than the results for Chinese adult men.