Determination of Pro-Xylane in Cosmetics by Ion chromatography
An ion chromatography(IC)methods was developed for the determination of Pro-xylane in cosmetics samples.The samples were dispersed with deionized water,extracted by ultrasound,separated by a Dionex CarboPac MA1 IC column(4 mm×250 mm),and detected by an electrochemical detector and integrated amperometry.The results were confirmed by liquid chromatography-mass spectrometry.The results showed that the linear range of Pro-xylane was 1-200 μg/mL,the detection limit(LOD)was 0.01％(S/N=3),the limit of quantification(LOQ)was 0.03％(S/N=10),and the correlation coefficient R2 was＞0.999.The average recoveries were 90.5％-98.5％and the relative standard deviations(RSDs)were 0.7％-3.7％under three spiking levels.The method is simple,accurate and rapid,and is suitable for the determination of Pro-xylane in cosmetic samples.
万方数据
维普
