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本文叙述了用电感耦合等离子体(ICP)光谱法测定磷酸三丁酯-煤油试液中的微量铀.采用乙醇作稀释剂.在低功率(阳极电压3800伏,阳极电流600毫安)条件下进行测定.在95%乙醇-5%磷酸三丁酯煤油试液中,测定下限为0.1微克/毫升.当铀浓度为2微克/毫升(乙醇-磷酸三丁酯煤油试液)时相对标准偏差为6%.本法的测定结果和固体荧光法一致.
This paper describes the determination of trace uranium in tributyl phosphate-kerosene test solution by inductively coupled plasma (ICP) spectrometry using ethanol as a diluent at low power (anode voltage 3800 V, anode current 600 mA) The lower limit of determination was 0.1 μg / ml in 95% ethanol-5% tributyl phosphate kerosene.When the uranium concentration was 2 μg / ml (ethanol-tributyl kerosene test solution), the relative standard The deviation is 6%. The determination result of this method is consistent with the solid fluorescence method.