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China Surfactant Detergent & Cosmetics ›› 2023, Vol. 53 ›› Issue (5): 596-601.doi: 10.3969/j.issn.2097-2806.2023.05.015

• Analytical methods and testing • Previous Articles     Next Articles

Simultaneous determination of caprylhydroxamic acid, 4-hydroxyacetophenone and p-anisic acid in cosmetics by HPLC-MS

Li Zexiaqiong,Qiu Hongyan,Ma Ying,Liu Dan,Zhao Li*()   

  1. Guizhou Institute for Food and Drug Control, Guiyang, Guizhou 550004, China
  • Received:2022-12-14 Revised:2023-04-28 Online:2023-05-22 Published:2023-05-22
  • Contact: * Tel.: +86-13688510572, E-mail: duanmuyun@163.com.

Abstract:

The content of caprylhydroxamic acid, 4-hydroxyacetophenone and p-anisic acid in cosmetics was simultaneously determined by HPLC-MS. The mobile phase was 0.1% acetic acid in acetonitrile (containing 0.1% formic acid) by using the gradient elution method. The qualitative analysis of these components was based on the retention time and the relative abundance ratio of the characteristic ion pairs. The peak area of the characteristic ions was used for quantitative analysis. The standard curve method was used to calculate the content of the three substances. The results showed that, in liquid matrix, lotion matrix and cream matrix, caprylhydroxamic acid, 4-hydroxyacetophenone and p-anisic acid showed good linear relationships in the range of 10-2 000, 2-2 000 and 5-2 000 ng/mL, respectively, while the correlation coefficients (r) were>0.999. This method was applied to determine the caprylhydroxamic acid, 4-hydroxyacetophenone and p-anisic acid in cosmetics, the results of which were stable within 48 hours. The recovery rates were between 87.37% and 111.56%. The average relative standard deviation (RSD) of the precision research was 1.4%, 1.8% and 1.6%, respectively. This method is efficient, convenient, and accurate in qualitative and quantitative analysis. It is suitable for quantitative and qualitative analysis of caprylhydroxamic acid, 4-hydroxyacetophenone and p-anisic acid in cosmetics of different matrices.

Key words: HPLC-MS, cosmetics, caprylhydroxamic acid, 4-hydroxyacetophenone, p-anisic acid

CLC Number: 

  • TQ658