Determination of Lead in Drinking Water by Intermittent Flow Hydride Generation Atomic Fluorescence Spectrometry
- VernacularTitle:水中痕量铅的断续流动氢化物发生-原子荧光光谱测定法
- Author:
Ge GAO
;
Rui TAO
- Publication Type:Journal Article
- Keywords:
Water;
Lead, Spectrophotometry;
Hydride generation;
Atomic fluorescene spectrometry
- From:
Journal of Environment and Health
1992;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To establish a method for determination of trace lead in drinking water by intermittent flow HG-AFS was developed. Methods The conditions for K3Fe(CN)6-KBH4-HCl system of generation of PbH4 were optimized and interference of coexisting ions were tested. Results The fluorescence signal of blank solution was decreased evidently by treating K3Fe(CN)6 with activated carbon and the detection limit was effectively improved. The interference of coexisting ions could be suppressed in some degrees in the presence of K3[Fe(CN)6]. Under the optimized conditions, the detection limit of this method was 0.10 ?g/L and RSD(n=6) was in the rang 0.4%-3.8%. The recovery rate was 95.0%-112.0%. Conclusion This method was accurate, simple, sensitive and suitable for determination of trace lead in drinking water.
