Simultaneous Determination of Lead and Total Arsenic in Drinking Water by Using Atomic Fluorescence Spectroscopy
In this study,a method for simultaneous determination of lead and total arsenic in drinking water by using atomic fluorescence spectroscopy was established.The results showed that the optimal conditions were obtained with a K3[Fe(CN)6]concentration of 1.00%,a KBH4 concentration of 1.50%and a thiourea concentration of 1.00%.The linear range was good at 0～10 μg·L-1 for both lead and arsenic,and the detection limits were 0.10 μg·L-1 and 0.15 μg·L-1,respectively.The recovery values were 98.4%～103.3%.The proposed method saves cost,improves the detection efficiency,and is suitable for popularization and application.
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