【摘要】 用氢化物发生 -原子荧光光谱法测定城市污水中总砷 ,确定了试验的最佳测定条件。结果表明 :砷的测定线性范围为 5～ 5 0 ng/ m L,回收率 10 0 %～ 10 3% ,测定 6条标准曲线的剩余标准差为 1.3,检出限为 0 .2 6 ng/ m L,该方法可用于测定其它不同水体中的总砷。更多还原

【Abstract】 Determination of total arsenic in city waste water samples by hydride generation atomic fluorescence spectrometry was described.The optimum condition of determination was discussed.The linear range of determination was from 5 ng/mL to 50 ng/mL,recovery rate was 100%~103%,the residual standard deviation of six specification curves was 1.3 and the detection limit was 0.26 ng/mL. The method can be used to assay total arsenic in other different water samples.更多还原