THE ESTIMATION OF ?-TOCOPHEROL IN HUMAN BLOOD BY GAS CHROMATOGRAPHY
- VernacularTitle:气相色谱法测定人体血中维生素E
- Author:
Weili ZHANG
;
Ruiguan CHEN
- Publication Type:Journal Article
- From:
Acta Nutrimenta Sinica
1956;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
The estimation of a-tocopherol in human blood was carried out by gas chromatography. The cholesterol in plasma must he removed in advance. The a-tocopherol is chromatographed as tocopherol acetate and is eluted with a retention time of about 8 min. Tetratriacontane was used as internal standard. The average recovery rate was 76.4 per cent and coefficient of variation was 4.4 per cent (N = 10). The mean level in 25 cord blood was 2.1 ?0.5 ?g/ml. It correlated well with the results by spectrophotome-tric method (r=0.6803 P
