| α能谱法测量尿中的~(241)Am |
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| 引用本文： | 邱咏梅,杨勇.α能谱法测量尿中的~(241)Am[J].中国核科技报告,2006(1). |
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| 作者姓名： | 邱咏梅 杨勇 |
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| 作者单位： | 中国工程物理研究院核物理与化学研究所 绵阳621900 |
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| 摘 要： | 以241Am为指示剂,采用共沉淀的浓集方法浓集尿中的镅,经阴离子交换法分离纯化,然后电镀制源,用低本底α测量仪和α谱仪对尿中的241Am进行测量。在加入10-3Bq241Am指示剂的情况下,回收率可达到60%以上。结果表明,用这种方法可以对尿中10-3Bq的241Am进行定量分析,结果的不确定度小于40%。
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| 关 键 词： | 241Am α谱仪 尿 离子交换 |
Alpha Spectrum Analysis of ~(241)Am in the Urine(In Chinese) |
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| QIU Yongmei YANG Yong.Alpha Spectrum Analysis of ~(241)Am in the Urine(In Chinese)[J].China Nuclear Science and Technology Report,2006(1). |
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| Authors: | QIU Yongmei YANG Yong |
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| Abstract: | With ~(241)Am as indicator,americium in the urine was concentrated by the method of codeposition,then it was purified by the method of anion exchange,at last,the americium was electroplated.~(241)Am in the urine was analysed by six channel low level alpha measuring instrument and Alpha Spectrometer.The results show that the recovering ratio is beyond 60% under the condition that the indicator added to the urine is at the level of mBq.So,~(241)Am in the urine can be quantitatively analysed by this method,uncertainty of the result is under 40%,detection limit of the instrument is under 10~(-4) Bq. |
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| Keywords: | Americium-241 Alpha spectrometer Urine Ion exchange |
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