Chinese Journal of Chromatography ›› 2014, Vol. 32 ›› Issue (9): 988-991.DOI: 10.3724/SP.J.1123.2014.06008

Previous Articles     Next Articles

Simultaneous determination of 11 bisphenols in plastic bottled drinking water by ultra performance liquid chromatography-tandem mass spectrometry

GOU Xinlei1, GAO Xia1,2, HU Guanghui1, CHI Haitao1, LE Shengfeng1, WANG Wei1, LIU Weili1,2   

  1. 1. Beijing Key Laboratory of Detection Technology and Quality Evaluation of Organic Material, Beijing Centre for Physical and Chemical Analysis, Beijing 100089, China;
    2. Beijing Engineering Research Center of Food Safety Analysis, Beijing 100089, China
  • Received:2014-06-05 Revised:2014-07-15 Online:2014-09-08 Published:2014-08-30

Abstract:

A sensitive method was developed for the simultaneous determination of 11 bisphenols in plastic bottled drinking water by ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). The samples were freeze-dried under vacuum and then dissolved with methanol. The separation was performed on a UPLC BEH C18 column (100 mm×2.1 mm, 1.7 μm) by using 0.1%(v/v) NH3·5H2O and methanol as mobile phases with gradient elution at a flow rate of 0.2 mL/min. The electrospray ionization (ESI) source in negative ion mode was used for the analysis of the 11 bisphenols in the multiple reaction monitoring (MRM) mode. The results verified that the standard curves for the 11 bisphenols were obtained with good correlation coefficients (R2)>0.997 in their concentration ranges. The limits of detection (LOD, S/N=3) for the 11 bisphenols were in the range of 0.01-1.00 μg/L. The mean recoveries for the 11 bisphenols at three spiked levels (low, middle, high) were 75.3%-102.1% with the relative standard deviations of 1.5%-8.9%. Seven plastic bottled drinking water samples were tested, and no bisphenol was found. The method is accurate, simple, rapid and feasible for the simultaneous determination of bisphenols in plastic bottled drinking water.

Key words: bisphenols, plastic bottled drinking water, ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS)

CLC Number: