Abstract A new simple extraction method has been developed for determination 20 banned organochlorine (OC) pesticide residues and 16 Environmental Protection Agency (EPA) priority pollutant polycyclic aromatic hydrocarbons (PAHs) using gas chromatography equipped with a mass-spectrometric detector (GC-MS). Various extraction processes were studied, the final extraction method was applied by liquid-liquid partition using acetonitrile/acetone 6:4 (v/v) mixture. The concentrated extracts were subjected to C18 – Solid Phase Extraction cartridge for the cleanup step. The new extraction method was validated, and it gave satisfactory results in terms of a linear relationship, precision, detection limits, quantitation limits, and recovery. The developed extraction method was applied to multi-residue analysis for OC pesticide residues and 16 EPA PAHs in 27 real samples of olive oil were collected from different regions in Jordan during 2018. Among all OC pesticide residues, only 4.4-dichlorodiphenyldichloroethylen (4.4-DDE) was detected in the examined Jordanian olive oil samples. Estimated levels of PAHs ranged from 1.30 to 5.32 and 9.95 to 67.68 µg/kg for PAH8 and 16 EPA PAHs, respectively; while Benzo[a]pyrene (B[a]P) not detected in all samples. Graphical Abstract

中文翻译：

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使用气相色谱-质谱法对约旦橄榄油中的有机氯农药和致癌多环芳烃进行多残留分析

摘要 开发了一种使用配备质谱检测器 (GC-MS) 的气相色谱法测定 20 种禁用有机氯 (OC) 农药残留和 16 种环境保护署 (EPA) 优先污染物多环芳烃 (PAH) 的简单提取方法。 . 研究了各种提取过程，最终的提取方法是使用乙腈/丙酮 6:4 (v/v) 混合物通过液-液分配来应用。浓缩的萃取液经过 C18 – 固相萃取柱进行净化步骤。新的提取方法经过验证，在线性关系、精密度、检出限、定量限和回收率方面得到了令人满意的结果。将开发的提取方法应用于 2018 年约旦不同地区的 27 个真实橄榄油样品中 OC 农药残留和 16 种 EPA PAH 的多残留分析。 在所有 OC 农药残留中，只有 4.4-二氯二苯二氯乙烯 (4.4-DDE) ) 在检查的约旦橄榄油样品中检测到。PAH8 和 16 种 EPA PAH 的估计 PAH 水平分别为 1.30 至 5.32 和 9.95 至 67.68 µg/kg；而未在所有样品中检测到苯并 [a] 芘 (B[a]P)。图形概要 PAH8 和 16 种 EPA PAH 分别为 68 µg/kg；而未在所有样品中检测到苯并 [a] 芘 (B[a]P)。图形概要 PAH8 和 16 种 EPA PAH 分别为 68 µg/kg；而未在所有样品中检测到苯并 [a] 芘 (B[a]P)。图形概要