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目的:通过固相微萃取(SPME)技术与其他3种前处理方法进行对比,建立一种SPME-GC快速测定金银花中有机氯农药(OCPs)残留量的方法。方法:分别采用2010年版《中国药典》方法,《日本药局方》16版方法,《2014年国家食品污染和有害因素风险监测工作手册》方法以及SPME技术测定金银花中有机氯农药残留状况,并进行回收率计算。结果:4种前处理方法的回收率均在65%~120%,其中2010年版《中国药典》方法、《日本药局方》16版方法和SPME技术杂质干扰相对较少。结论:分析了4种方法检测金银花药材中有机氯农药残留量的差异,并确定了在中药材中有机氯农药残留量测定中,SPME-GC是一种快速、简单、灵敏的检测方法。
OBJECTIVE: To establish a method for rapid determination of organochlorine pesticides (OCPs) residues in honeysuckle by SPME-GC by comparing with other three pre-treatment methods by SPME. Methods: Residues of organochlorine pesticides in honeysuckle were determined by the method of 2010 Chinese Pharmacopoeia, the Japanese Pharmacopoeia 16 version, the 2014 Manual of National Food Contamination and Hazardous Factors Risk Monitoring and SPME respectively Recoveries are calculated. Results: The recoveries of the four pretreatment methods were between 65% and 120%, among which the interferences from the 2010 edition of “Chinese Pharmacopoeia” method and the “Japanese Pharmacopoeia” version 16 method and the SPME technology impurity were relatively less. CONCLUSION: Four methods were used to detect the difference of organochlorine pesticide residues in honeysuckle, and it was confirmed that SPME-GC was a rapid, simple and sensitive method for the determination of organochlorine pesticide residues in Chinese herbal medicines.