【摘要】 研究了应用氢化物发生-原子荧光光谱法同时测定生活饮用水用聚氯化铝中的砷和汞,方法灵敏度高、准确度好。在最佳条件下,对硼氢化钾浓度、检出限、精密度、加标回收率等进行了研究。结果表明:方法的检出限砷为0.007 9μg/L、汞为0.002 6μg/L,砷、汞的加标回收率分别为93.75%~103.83%和105.00%~108.75%。更多还原

【Abstract】 Application of hydride generation-atomic fluorescence spectrometry method in the simultaneous determination of arsenic and mercury in polyaluminium chloride used for drinking water was studied.This method is of high sensitivity and good accuracy.Under optimal conditions,the potassium borohydride concentration,detection limit,precision,and recovery rate were investigated.Results showed:the detection limits of arsenic and mercury were 0.007 9 μg/L and 0.002 6 g/L,respectively:the recovery rates of arsenic and mercury were 93.75%~103.83% and 105.00%~108.75%,respectively.更多还原