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China Surfactant Detergent & Cosmetics ›› 2021, Vol. 51 ›› Issue (12): 1269-1277.doi: 10.3969/j.issn.1001-1803.2021.12.015

• Analytical methods and testing • Previous Articles     Next Articles

Determination of 32 kinds of component in hair dyes by HPLC-MS/MS and stability analysis of dye intermediates

Li Ruoqi1,Wu Yue1,Sun Ying1,*(),Li Guangning2   

  1. 1. Gansu Institute for Drug Control, Lanzhou, Gansu 730070, China
    2. SCIEX China, Beijing 100015, China
  • Received:2021-02-02 Revised:2021-12-02 Online:2021-12-22 Published:2021-12-21
  • Contact: Ying Sun E-mail:sunying03@hotmail.com

Abstract:

A method was developed for the determination of 32 kinds of component in hair dyes using high performance liquid chromatography-tandem mass spectrometry, and the stability analysis of dye intermediates. The samples were extracted with mixed solution with methyl alcohol and 2 g/L sodium bisulfite aqueous solution (V/V=2∶8). The analytes were separated on a Atlantis T3 column with 10 mmol/L ammonium formate aqueous solution (pH=8) and mixed solution with methyl alcohol and acetonitrile (V/V=1∶1) as mobile phases, and finally analyzed using electrospray ionization in positive and negative ion mode (ESI+, ESI-) with multilpe reaction monitoring (MRM). The linear ranges of the 32 dyes are from 0.005-50 mg/kg with correlation coefficients (r) more than 0.995. The matrix effects range from 4.1% to 44.6% in samples. The average recoveries are 80.2%-109.6% at the spiked levels of 0.2, 2 and 10 mg/kg. The average relative standard deviations is 0.8%-9.8% at the spiked levels of 0.5, 2 and 5 mg/kg. The limits of detection and the limits of quantification are 0.005 2-2.4 mg/kg and 0.018-7.9 mg/kg for the 32 dyes. The peak area of dyes increases by an average of 30.3% at 10 h in positive ion detection mode. The peak area of dyes decreases by an average of 29.6% at 20 h in negative ion detection mode. The method is simple, rapid and sensitive, and can provide technical support for dye detection in hair dyes. The instability of dyes can provide theoretical basis for quantitative analysis and quality control. The instability of dye intermediates can provide theoretical basis for quantitative analysis.

Key words: dye intermediates, HPLC-MS/MS, stability

CLC Number: 

  • TQ658