【摘要】 目的采用氢化物发生-原子荧光光谱法测定生活饮用水中的汞。方法采用2%硝酸溶液作为载流代替原来的5%盐酸溶液,20 g/L的硼氢化钾溶液作为实验的还原剂。结果本方法适用于生活饮用水中汞的测定,回收率90.0%～100.5%,标准曲线r>0.995,检出限为0.033 8μg/L,相对标准偏差为1.24%。结论本方法方便、快速、准确,灵敏度高,能消除实验中的干扰因素,满足日常生活水质的检测要求。更多还原

【Abstract】 Objective To determine the mercury of drinking water by hydride generation-atomic fluorescence spectrometry.Methods 2% nitric acid solution was used as a carrier instead of the original 5% hydrochloric acid solution;20 g/L of potassium borohydride solution was a reducing agent for experimental.Results The method was suitable for the determination of mercury in drinking water.The recovery rate was 90.0%-100.5%,the standard curve was above 0.995,the detection limit was 0.033 8 μg/L,standard deviation was 1.24%.Conclusion The method is convenient,rapid and accurate.It can eliminate the interference factors in the experiment and satisfy the detection requirements of the water quality of daily life.更多还原