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本文建立了潲水油中多环芳烃的气相色谱/质谱测定方法。首先通过环已烷-二甲基亚砜对样品进行两次提取,再用硅胶固相萃取柱进行净化。利用GC/MS分离测定。优化了对潲水油中17种多环芳烃化合物的分离测定条件,方法的检出限为1.80ⅹ10-4～1.10×10-3mg/kg,相对标准偏差为4.3%～17.5%,样品加标回收率为59.8%～81.2%。该方法灵敏度高、准确度好,能满足潲水油中多环芳烃的测定。
In this paper, a gas chromatography / mass spectrometry method for determination of polycyclic aromatic hydrocarbons (PAHs) was developed. Samples were first extracted twice with cyclohexane-dimethylsulfoxide and then purified by silica gel SPE cartridges. Using GC / MS separation assay. The optimal conditions for the determination of 17 polycyclic aromatic hydrocarbons (PAHs) in water were optimized. The detection limits were 1.80 × 10-4 ~ 1.10 × 10-3mg / kg and the relative standard deviations were 4.3% ~ 17.5%. The samples were spiked The rate was 59.8% ~ 81.2%. The method has high sensitivity and accuracy, and can satisfy the determination of polycyclic aromatic hydrocarbons in the water of oil.