【摘要】 建立用加速溶剂萃取/气相色谱-质谱法测定糖果包装材料中双酚A的分析方法。样品用二氯甲烷-丙酮作提取剂,加速溶剂萃取仪提取,经BSTFA+TMCS衍生化,用气相色谱-质谱联用仪进行定性定量分析,双酚A的回收率在75.2%～90.7%之间、方法的检出限为5μg/kg。该方法前处理过程简单,具有较高的精密度和准确性,重复性好。更多还原

【Abstract】 An accelerated solvent extraction followed by gas chromatography-mass spectrometric method was presented for determining bisphenol A in candy packaging materials.Samples were extracted with a mixture(7:3,V/V) of dichloromethane and acetone in an accelerated solvent extractor,derivatized with a commercial BSTFA-TMCS mixture prior to GC-MS analysis.Mean spike recoveries of bisphenol A at three levels were between 75.2% and 90.7%,and the limit of detection(LOD) of bisphenol A was 5 μg/kg.This method has the characteristics of simplicity,high accuracy and precision and good reproducibility.更多还原