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China Surfactant Detergent & Cosmetics ›› 2020, Vol. 50 ›› Issue (12): 885-891.doi: 10.3969/j.issn.1001-1803.2020.12.012

• Analytical methods and testing • Previous Articles     Next Articles

Determination of 43 glucocorticoids in infant eczema products by UHPLC-MS/MS

DONG Ya-lei,LIU Zhao,WANG Hai-yan(),SUN Lei   

  1. National Institutes for Food and Drug Control, Beijing 100050, China
  • Received:2020-03-09 Revised:2020-11-18 Online:2020-12-22 Published:2020-12-22
  • Contact: Hai-yan WANG E-mail:Summerwhy163@163.com

Abstract:

A fast and accurate method for the determination of 43 kinds of glucocorticoids in infant eczema products by UHPLC-MS/MS was established. The samples were extracted with acetonitrile ultrasonically. The supernatant was diluted and injected directly. After optimizing the sample pretreatment and chromatography conditions, as well as mass spectrometry parameters, UHPLC-MS /MS analysis method was performed for qualitative screening in MRM mode. The samples with suspected positive screening results were further confirmed. Qualitative analysis was conducted according to retention time and relative abundance ratio of characteristic ion pairs. Quantitative ion pairs were used for quantitative measurement by external standard method. This method was used for detecting 41 batches of eczema-related cosmetic products and disinfection products sold online. Glucocorticoids were detected in 6 batches of products, and the detection rates of the two types of products were 5.9% and 57.1%, respectively. The method is simple, accurate and reliable, which can be used for the actual sample detection and provide technical support for cosmetic safety supervision.

Key words: UHPLC-MS/MS, glucocorticoids, infant, eczema, cosmetics

CLC Number: 

  • TQ658