本文建立了中心切割气相色谱法测定车用汽油中的非法添加剂,能够快速分析甲缩醛和苯胺类化合物。测定结果显示,各待测物在0~30%(V/V)范围内线性良好,样品中各待测物的加标回收率在95.37%~103.10%之间,6次重复测定的相对标准偏差小于2.00%,甲缩醛检出限为0.00134%,苯胺类化合物的检出限均小于0.002%。 In this paper, the establishment of a central cut gas chromatography determination of motor gasoline gasoline illegal additives, can be rapid analysis of methylal and aniline compounds. The results showed that the linearity of each analyte in the range of 0-30% (V / V) was good, the spiked recoveries of all analytes in samples ranged from 95.37% to 103.10%, and the relative standard of 6 replicates The deviation was less than 2.00%, the detection limit of methylal was 0.00134%, and the detection limits of aniline compounds were less than 0.002%.