Determination of Calcium in Nutritive Food by Ion Chromatography
- VernacularTitle:营养强化食品中钙的离子色谱测定法
- Author:
Yanchun WANG
;
Yuzhu YANG
- Publication Type:Journal Article
- Keywords:
Chromatography,ion;
Nutritive food;
Calcium
- From:
Journal of Environment and Health
2007;0(08):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To establish a method for the determination of Ca2 + cations in the nutritive food by ion chromatography.Methods After being digested by the mixture of nitric acid and perchloric acid,the Ca2+ cations in the nutritive food were determined by ion chromatography(IC).Results The optimum chromatographic conditions were studied thoroughly,the linear range was 0.10-500 mg/L,r=0.9998.The lowest detection limit of Ca2+ cations in nutritive food was 0.02 mg/L,RSDs were 0.50%-4.00%,the rates of recovery tested by the standard addition method were in the range of 95.0%-103.0%.Conclusion This method is simple,fast,sensitive and accurate.
