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China Surfactant Detergent & Cosmetics ›› 2024, Vol. 54 ›› Issue (7): 873-878.doi: 10.3969/j.issn.2097-2806.2024.07.016

• Analytical methods and testing • Previous Articles    

Determination of 5 whitening agents in cosmetics using UPLC-MS/MS

Changzhao Wang1,Zihao Li1,*(),Yixin Wang2,Yue Yang3   

  1. 1. Xi’an Customs Technology Center, Xi’an, Shaanxi 710068, China
    2. Shaanxi Institute for Food and Drug Control, Xi’an, Shaanxi 710065, China
    3. CCIC Shaanxi Co., Ltd., Xi’an, Shaanxi 710068, China
  • Received:2023-07-31 Revised:2024-06-28 Online:2024-07-22 Published:2024-07-26
  • Contact: *E-mail: 450570470@qq.com

Abstract:

A method was established for quantitative determination of five whitening agents in cosmetics using ultra-high performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). The samples were extracted with methanol-water solution (70∶30), ultrasonic extraction for 30 minutes and then separated by Agilent column (ZORBAX RR StableBond Aq) followed by gradient elution. An electrospray ionization (ESI) source in negative ion mode was utilized for multiple reaction monitoring (MRM) scanning. The results show that under optimal conditions no obvious matrix effect exists in 3 different cosmetic matrices. Among the three cosmetics with different types of matrices, good linearity is obtained for five whitening agents in the range of 1.0-200.0 ng/mL, and the correlation coefficients (R2) are more than 0.996. The limit of detection (LOD) and limit of quantitation (LOQ) are 0.01-0.1 mg/kg and 0.03-0.3 mg/kg, respectively. Spike recovery is performed on three cosmetics at three different spike levels (1, 2, and 10 times of the LOQ), and the average recovery range is 82.6%-104.8% with a relative standard deviation of 2.1%-8.6% (n=6). This method is easy to implement, efficient and accurate. It is suitable for quantitative analysis of five whitening agents, including deoxyarbutin, α-arbutin, β-arbutin, hydroquinone, and ursolic acid in common cosmetics, providing technical support for the regulation and risk monitoring of the cosmetics industry.

Key words: UPLC-MS/MS, whitening agents, cosmetics

CLC Number: 

  • TQ658