分析测试学报2025，Vol.44Issue(7)：1331-1337,7.DOI:10.12452/j.fxcsxb.241030500
磁性固相萃取/气相色谱法检测鱼肉中8种多氯联苯
Determination of 8 Kinds of Polychlorinated Biphenyls in Fish by Magnetic Solid-phase Extraction/Gas Chromatography
摘要
Abstract
Magnetic solid-phase extraction coupled with gas chromatography was developed for the sensitive determination of 8 kinds of polychlorinated biphenyls(PCBs)by using magnetic porous car-bon@β-cyclodextrin/epichlorohydrin copolymer(MPC@β-CDEP)composites as magnetic solid-phase extraction agent.Effects of the amount of adsorbent,extraction time,type of desorption solvent,and desorption time on the extraction performance of MPC@β-CDEP were investigated.Under the op-timized conditions,the 8 kinds of PCBs showed a good linearity in the concentration range of 1-500 μg/L.The correlation coefficients(r2)were greater than 0.995.The limits of detection and quantifica-tion were 0.022-0.030 μg/kg and 0.072-0.10 μg/kg,respectively.The method was applied to de-termine PCBs in grass carp and channa argus samples.The recoveries were 86.1%-106%and relative standard deviations(RSDs)were less than 8.0%.The developed method has the advantages of simple pretreatment,short extraction time,wide linear range,high sensitivity,good accuracy and preci-sion,and can be applied to the efficient and rapid detection of multiple PCBs in real samples.关键词
多氯联苯/磁性固相萃取/气相色谱法/β-环糊精/多孔碳/鱼肉Key words
polychlorinated biphenyls/magnetic solid-phase extraction/gas chromatography/β-cyclodextrin/porous carbon/fish分类
化学化工引用本文复制引用
黄象金,韦寿莲,谢春生,黄燊维,张庆珍..磁性固相萃取/气相色谱法检测鱼肉中8种多氯联苯[J].分析测试学报,2025,44(7):1331-1337,7.基金项目
肇庆市科技创新指导类项目(2023040308017) （2023040308017）
广东亚视演艺职业学院校级项目(24KJZD-03) （24KJZD-03）
