建立一种花生油中邻苯二甲酸酯类化合物检测方法，花生油样品以正己烷饱和乙腈提取，经25 mg乙二胺-N-丙基硅烷（PSA）和25 mg十八烷基硅烷键合硅胶（C18）净化，GC-MS选择离子监测（SIM）模式下检测，外标法定量。17种邻苯二甲酸酯类物质在0.02~3.0 mg/L浓度范围内呈良好线性，相关系数（r）均在0.999以上，检出限（LOD）在0.01~0.02 mg/kg之间，定量限（LQD）在0.03~0.05 mg/kg之间，加标回收率和精密度分别在76.8%~108.4%和1.10%~5.18%。方法操作简单快捷、灵敏度高、准确性好，可用以测定花生油中17种邻苯二甲酸酯类化合物。
To establish a method for the determination of phthalic acid esters in Peanut oil, Peanut oil samples were extracted with n-hexane saturated acetonitrile, purified by 25 mg PSA and 25 mg C18 and detected by GC-MS selected ion monitoring (SIM) mode detection, external standard method quantitative. The standard solution of 17 phthalates showed a good linearity in the concentration range of 0.02~3.0 mg/L, and the correlation coefficient (r) is above 0.999, the detection limit (LOD) was 0.01 mg/kg to 0.02 mg/kg, and the quantitative limit (LQD) was 0.03 mg/kg to 0.05 mg/kg. the recovery of standard addition was 92.47% to 108.72%, and the relative standard deviation was 1.10% to 5.94%.The method is simple, rapid, sensitive and accurate. and can be used for the determination of 17 phthalates in Peanut oils.