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用毛细管气相色谱法实现了液状食品中 4种防腐剂 (对羟基苯甲酸甲酯、对羟基苯甲酸乙酯、对羟基苯甲酸丙酯、对羟基苯甲酸丁酯 )的分离测定 ,各组分回收率为 91.15～ 10 7.7% ,检出限为 0 .5 μg/ m L,线性范围为 0 .2 μg/ m L～ 80 μg/ m L,线性相关系数大于 0 .999。
The separation and determination of four kinds of preservatives (methyl paraben, ethyl paraben, propyl paraben and butyl paraben) in liquid food were achieved by capillary gas chromatography. The components The recoveries ranged from 91.15% to 10.7% with a limit of detection of 0.5 μg / mL with a linear range of 0.2 μg / mL to 80 μg / mL with a linear correlation coefficient of greater than 0.999.