Objective A method for the simultaneous determination of bisphenol A (BPA) and fifteen phthalate esters (PAEs) by high performance liquid chromatography-tandem mass spectrometry was established. Methods The samples were extracted by methanol. The target compounds were separated by C18 column and detected by MS/MS system with eletrospray ionization (ESI) positive and negative ion mode under multiple reaction monitoring (MRM) mode. Results High correlation coefficients (r≥0.9900) of sixteen compounds were obtained within their respective linear ranges. The LOQ of BPA and 15 PAEs was 10 μg/kg. The recov-eries ranged from 61.1%~129.5%, with the relative standard deviations of 1.13%~22.12%. Conclusion This method is suitable for the identification and quantification of PAEs and BPA in beverage, milk and milk powder with advantages of simple pretreatment, good purification and high sensitivity.
标题:高效液相色谱-串联质谱法测定饮料、牛奶和奶粉中双酚A和15种邻苯二甲酸酯
英文标题:Determination of bisphenol A (BPA) and 15 phthalate esters (PAEs) by high performance liquid chromatography-tandem mass spectrometry in beverage, milk and milk powder