SIMULTANEOUS DETERMINATION OF ZINC, COPPER AND IRON IN HUMAN HAIR BY SOLVENT EXTRACTION-ATOMIC ABSORPTION SPECTROMETRIC ANALYSIS
- VernacularTitle:人发中锌铜铁的萃取——原子吸收光谱联合测定法
- Author:
Weijie CHEN
;
Chengyi ZHAO
;
Suhe CHEN
- Publication Type:Journal Article
- From:
Acta Nutrimenta Sinica
1956;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Copper and iron, chelated by cupferron and extracted by methyl-iso-butyl-ketone at pH 3.4-4.2, are enriched and the absorption signals of AAS are enhanced by the organic solvent, thus result in a smaller sample requirement (less than 100 mg hair) and a higher sensitivity (almost 20 times the original aqueous solution). The recoveries of zinc, copper and iron for human hair analysis are in the range of 98-106%, and the coefficients of variation are 0.6, 2.5 and 6.5% respectively. The recommended method is simple, easy to manipulate and suitable to medical application.
