Welcome to China Surfactant Detergent & Cosmetics, Today is

China Surfactant Detergent & Cosmetics ›› 2022, Vol. 52 ›› Issue (2): 207-213.doi: 10.3969/j.issn.1001-1803.2022.02.014

Previous Articles     Next Articles

Determination of betamethasone and eight analogues in cosmetics by UPLC-ESI-Q-TOF/MS

Jia Changping,Zhang Bin,Zhang Shanshan,Zheng Jiaxin,Zheng Mei,Chen Wei()   

  1. Suzhou Institute for Drug Control, Suzhou, Jiangsu 215000, China
  • Received:2021-03-23 Revised:2022-01-05 Online:2022-02-25 Published:2022-02-22
  • Contact: Wei Chen E-mail:jiakane@126.com

Abstract:

A method of ultra-performance liquid chromatography-high resolution mass spectrometry (UPLC-ESI-Q-TOF/MS) was developed for simultaneous determination of betamethasone and its 8 analogues. The separation was executed on a small particle column, and gradient elution was used. The mass spectrometer was performed in positive ion mode, and the identification was performed by MS2 scan with aid of standards, and the determination was carried out in MS scan mode by the external standard method. The analysis method developed was validated. The linear relationship in the linear range was satisfactory, the detection limit was between 0.05 and 0.34 mg/kg. The recovery was 93.1%-103.7%, and the relative standard deviation was less than 6%. In the analysis of 10 batches of cosmetics, glucocorticoids were detected in five batches. Furthermore, two glucocorticoids additives were found for the first time, i.e., betamethasone 17-propionate and betamethasone 21-propionate.

Key words: UPLC-ESI-Q-TOF/MS, cosmetics, glucocorticoid

CLC Number: 

  • TQ658