Determination of Lead in Air With Hydride Generation Atomic Fluorescence Spectrophotometry
- VernacularTitle:空气中铜的氢化物原子荧光测定法
- Author:
Xiaofang LUO
;
Wenhua QIN
;
Cui WANG
- Publication Type:Journal Article
- Keywords:
Lead;
Atomic flurescence spectrophotometry;
Hydride generation
- From:
Journal of Environment and Health
1993;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To establish a method to determine lead in air. Methods The filter film used to collect the lead in air was digested with acid followed by adding mixed solution of potassium ferricyanide,oxalic acid and hydrochloric acid, then double ways atomic flurescence spectrophotometry was employed to determine lead. Results The optimal concentration of hydrochloric acid, potassium ferricyanide and oxalic acid were 0.12 mol/L, 8 g/L and 0.4 g/L respectively. The detection limit of lead was 1 ?g/L, the relative standard deviation was 2.5%. The recovery rates ranged from 90% to 95%, the linar range was 10-80 ?g/L. Conclusion This method was simple, rapid, accurate and sensitive. It was suitable for determining lead in air.
