DEVELOPMENT OF A CERTIFIED REFERENCE MATERIAL FOR THE ANALYSIS OF VITAMINS IN INFANT FORMULA

摘要

An infant formula certified reference material (CRM) for the analysis of vitamins was developed. Vitamin A, folic acid, niacin, were certified and their stability has been monitored by using isotope dilution-liquid chromatography/mass spectrometric (ID-LC/MS) methods developed in our laboratories as primary methods for the corresponding analytes. Certification of α-, δ -, and γ-tocopherols in the CRM is undergoing at the time of submitting this proceeding.