Determination of Stimulants in Products of Nutritional Supplement
- VernacularTitle:营养补充品中刺激剂的分析测定
- Author:
Jianghai LU
;
Shan WANG
;
Jing DENG
- Publication Type:Journal Article
- Keywords:
GC/NPD, GC-MSD, nutritional supplement, stimulant
- From:
Chinese Journal of Sports Medicine
2003;0(06):-
- CountryChina
- Language:Chinese
-
Abstract:
A method has been developed for the determination of stimulants in products of nutritional supplement. The stimulants in the samples were extracted with a solution of sodium hydroxide and then cleaned up by liquid -liquid partitioning.The extracted stimulants were analyzed by gas chromatography with HP-5capilary column and detected by the Nitrogen-Phosphorus detector (NPD). The results showed that the method had good purifying effect with high sensitivity. The operation was also simple and quick. The detection limit ranged from 5 to 40 ?g/L and the average recovery rate was 75.4%～143.1% with relative standard deviations (RSDs) ranged from 0.27% to 5.5%.
