Determination of Arsenic in Urine by Microwave Digestion-Oscillopolarographic Method
- VernacularTitle:尿中砷的微波消解-示波极谱测定法
- Author:
Hongchao GAO
;
Ju HAN
- Publication Type:Journal Article
- Keywords:
Arsenic;
Microwave digestion;
Oscillopolarographic method;
Urine
- From:
Journal of Environment and Health
1992;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To establish a method for the determination of arsenic in urine by microwave digestion-oscillopolarographic method. Methods The urine samples were treated by microwave digestion. After being reduced to As3+,total arsenic in the samples was determined by oscillopolarographic method in the system of H2SO4-KBr-Se4+. The experiment conditions were optimized. Results The linear range of the method was 0-50 ?g/L(r=0.999 8),the limit of detection was 0.67 ?g/L,the relative standard deviation was 1.44%,and the rates of recovery were 95.0% -103.0%. Conclusion The method is simple,rapid,accurate and applicable to the determination of arsenic in human urine,which presents an advantage of low losing of arsenic in the treatment and determination.
