建立了毛细管柱-自动顶空气相色谱法测定化妆品中甲醇的方法。研究了样品平衡温度、样品平衡时间、盐析剂等实验条件对测定结果的影响。甲醇含量在9.504—594.0mg/L浓度范围内线性关系良好,相关系数(r)为0.99998。在50—250Lg/g添加水平的回收率为90.4%—105.6%,检出限为49.9Lg/g。实验结果证明,该方法适于化妆品中甲醇含量的检测。 A capillary column and automatic headspace gas chromatography method for the determination of methanol in cosmetics was established. The effects of experimental conditions such as sample equilibrium temperature, sample equilibration time and salting-out agent on the determination results were studied. The methanol content in the range of 9.504-594.0mg / L linearity was good, the correlation coefficient (r) was 0.99998. The recoveries at the spiked levels of 50-250 Lg / g ranged from 90.4% to 105.6% with a limit of detection of 49.9 Lg / g. Experimental results show that the method is suitable for the detection of methanol in cosmetics.