气相色谱-质谱法测定电子产品中的四溴双酚-A

A method for the determination of tetrabromobisphenol-A(TBBP-A) in electronic products was developed by gas chromatography-mass spectrometry(GC-MS).The TBBP-A was extracted from electronic products by automatic digestion oven with acetone and concentrated by the evaporation of solvent.It was redissolved in methylene chloride,back-extracted by potassium carbonate solution and reacted with acetic anhydride.The derivative was extracted by hexane and determined by GC-MS.The linear calibration curve was obtained in the range of 0.25-5.0 mg/L with a correlation coefficient of 0.996.The detection limit of the method was 0.05 mg/kg.The recoveries were 87.3%-104.1% and the relative standard deviations were 5.6%-8.5%.The method is accurate and sensitive,and it is suitable for the analysis of tetrabromobisphenol-A in electronic products.