Determination of selenium in medicine preparation by atomic fluorescence spectrometry
- VernacularTitle:用原子荧光法测定医药制剂中的硒含量
- Author:
Juanni ZHANG
;
Zhifeng ZHANG
;
Changying WANG
;
Lianhe ZHANG
;
Jinghua ZHANG
- Publication Type:Journal Article
- Keywords:
atomic fluorescence;
selenium;
hydrid
- From:
Journal of Xi'an Jiaotong University(Medical Sciences)
1981;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To establish stable and convenient atomic fluorescence spectrometry to determine selenium concentration.Methods The samples were digested by nitric acid-perchloric acid and the selenium was determined by hydride generation-atomic fluorescence spectrometry with step-flow injection technology in NaBH4 acid and 100 g/L K3Fe(CN)6 system.Results The relative standard deviation of the method was less than 5%,the concentration of detection limits was 0.81 ?g/L and the recovery rate ranged from 93.1% to 102.2%.Conclusion Atomic fluorescence spectrometry was convenient and reliable in determining solenium,the digest method of test tube was better than that of normal electrothermal board.
