摘要
采用断续流动进样氢化物发生—双道原子荧光光谱法测定地下水中的砷、汞,确定仪器的最佳条件,考察了酸度,预还原剂和还原剂用量和载流流速的影响以及共存元素的干扰情况,在选定的条件下,砷的检出限0.0109μg/L,相对标准偏差为1.10%,回收率为95.7～102.2,汞的检出限0.0023μg/L,相对标准偏差0.87%,回收率为95.5～103.0.
The intermittent flow - HG- AFS determination of the groundwater arsenic, mercury, determine the best conditions for equipment, inspected the acidity, pre-reducing agent and reducing agent usage and carrier flow rate as well as the impact of coexistence elements interference, and in selected conditions, arsenic g detection limit of 0.0109μg/L, the relative standard deviation is 1.10%, the recovery was 95.7 to 102.2, Mercury detection limit 0.0023μg / L, the relative standard deviation 0.87%, the recovery rate was 95.5 to 103.0.
出处
《安徽地质》
2007年第4期278-280,共3页
Geology of Anhui
