Alpha Spectrum Analysis of ~(241)Am in the Urine(In Chinese)

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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