A new and efficient method for analyzing magnesium L-ascorbyl-2-phosphate(A-PM)in cosmetic by reversed-phase high performance liquid chromatography was developed.A Lichrosorb-NH2 column was used with a mixture of ac...A new and efficient method for analyzing magnesium L-ascorbyl-2-phosphate(A-PM)in cosmetic by reversed-phase high performance liquid chromatography was developed.A Lichrosorb-NH2 column was used with a mixture of acetonitrile-0.3 mol/L phosphate buffer(pH4)(35:65,V/V)as the mobile phase and detection at 255 nm.The detection limit was 0.4 mg/L.The recoveries were 96.97%-102.78% and the relative standard deviations were 0.46%-1.75%.展开更多
文摘A new and efficient method for analyzing magnesium L-ascorbyl-2-phosphate(A-PM)in cosmetic by reversed-phase high performance liquid chromatography was developed.A Lichrosorb-NH2 column was used with a mixture of acetonitrile-0.3 mol/L phosphate buffer(pH4)(35:65,V/V)as the mobile phase and detection at 255 nm.The detection limit was 0.4 mg/L.The recoveries were 96.97%-102.78% and the relative standard deviations were 0.46%-1.75%.