Chemical Research in Chinese Universities ›› 2017, Vol. 33 ›› Issue (3): 343-347.doi: 10.1007/s40242-017-6448-8

• Articles • Previous Articles     Next Articles

Direct Determination of Migration Amount of Fluorescent Whitening Agents in Facial Mask

YU Yang1, WANG Xinghua1, FEI Qiang1, YU Yong2, TIAN Sizhu1, WANG Kun1, JIANG Jia1, SONG Daqian1, YU Aimin1, ZHANG Ziwei1   

  1. 1. College of Chemistry, Jilin University, Changchun 130012, P. R. China;
    2. College of Instrumentation and Electrical Engineering, Jilin University, Changchun 130061, P. R. China
  • Received:2016-11-09 Revised:2017-02-21 Online:2017-06-01 Published:2017-03-20
  • Contact: ZHANG Ziwei,E-mail:zzw@jlu.edu.cn E-mail:zzw@jlu.edu.cn
  • Supported by:

    Supported by the Project of Science and Technology Department of Jilin Province, China(No.20140204038GX) and the Special-funded Program on National Key Scientific Instruments and Equipment Development of China(No. 2011YQ1401500).

Abstract:

Facial mask is a kind of skin care cosmetics, in which fluorescent whitening agents(FWAs) were added to make face skin look whiter and brighter. In this work, pig skin was used instead of human skin to test the methods. Three methods, including pig skin migration fluorescent spectrophotometry(FS), fiber paper migration FS, and fiber paper migration visual colourimetry(VC), were developed for determining the migration amount of FWAs from facial mask to pig skin. In the methods, a self-assembly light source and fluorescence collecting unit was used. The unit can be easily moved and the measurement was very convenient. Some experimental conditions were optimized. The fiber paper migration VC can give semi-quantitative results and was the simplest one in the three methods because collection, separation and detection of the fluorescence were not needed. Both the pig skin migration FS and fiber paper migration FS can give quantitative results and compared with fiber paper migration FS, the pig skin migration FS could give more practical results by simulating the real way of using facial mask. The limits of detection for disodium 4,4'-bis[(4-anilino-6-hydroxyethylamion-1,3,5-triazin-2-yl)amion]stilbene-2,2'-disulphonate(VBL) obtained by pig skin migration FS and fiber paper migration FS were 0.03 and 0.05 mg/m2, respectively. 96 kinds of samples were analyzed and the migration amounts of FWAs in 21 kinds of samples were detectable. Correlations between migration amounts obtained by the three methods were very good. Experimental results indicate that the present methods can be applied to the determination of migration amount of FWAs in facial masks.

Key words: Fluorescent spectrophotometry, Fluorescent whitening agent, Migration amount, Pig skin, Glass fiber paper