Study on the Quantitative Analysis of Trace Lead in Seawater Using Hydride Generation Atomic Fluorescence Spectrometry
This experiment established a method for the determination of trace lead in water and seawater using hydride generation atomic fluorescence spectrometry(HG-AFS).Seawater only needs to be subjected to simple filtration treatment and directly analyzed by hydride generation atomic fluorescence spectrometry.Oxalic acid is used as a masking agent,formic acid is used as a sensitizer,and potassium ferrocyanide is used as an oxidant.The analysis is carried out using an atomic fluorescence analyzer.Lead in seawater has a good linear relationship within the concentration range of 1.0 to 50 μg/L.The recovery rate of the method is 95.0%to 107.0%,and the relative standard deviation is 2.1%.The detection limit of this method is 0.1 μg/L.The method does not require manual and complex pre-treatment processes,and has good accuracy,which can be used for quantitative analysis of lead in large quantities of seawater.
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