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China Surfactant Detergent & Cosmetics ›› 2020, Vol. 50 ›› Issue (6): 427-432.doi: 10.3969/j.issn.1001-1803.2020.06.012

• Analytical methods and testing • Previous Articles    

Determination of five fluorescent whitening agents in cosmetics by high performance liquid chromatography-tandem mass spectrometry

DOU Yue,TIAN Jin-qiang,WANG Qian-lei,WANG Yong-feng,PAN Ke-yi   

  1. Zhongshan Institute for Food and Drug Control, Zhongshan, Guangdong 528437, China
  • Received:2019-09-30 Revised:2020-05-21 Online:2020-06-22 Published:2020-06-22

Abstract:

A method for the determination of five fluorescent whitening agents (FWAs) in cosmetics by high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) was developed. The samples were extracted with 50% methanol by ultrasonic extraction for 30 min, purified by WAX SPE column, and analyzed by HPLC-MS/MS on a CAPCELL PAK-C18 column (2.0 mm×150 mm, 3 μm), employing methanol-5 mmol/L ammonium acetate as mobile phase in a gradient elution mode. Electrospray ionization (ESI) source was operated in the negative mode using multiple reaction monitoring (MRM) scanning mode. The results were quantified by external standard method. The results indicated that the method had good linear relationships with correlation coefficients (r) greater than 0.99. The limits of detection(LODs) are 0.1-1.01 mg/L and the limits of quantification (LOQs) are 0.33-2.03 mg/L. The average recoveries at three spiked levels are in the range of 90.6%-113.2%, and the relative standard deviations (RSDs) are in the range of 2.2%-14.1%.

Key words: HPLC-MS/MS, fluorescent whitening agents, solid phase extraction, cosmetics

CLC Number: 

  • TQ658