摘要
建立了高效气相色谱仪检测水产品可食部分（肌肉和头）中氯氰菊酯、氰戊菊酯和溴氰菊酯残留量的方法。样品用乙腈提取、正已烷萃取、中性氧化铝小柱净化,正已烷定容,63Ni-ECD检测,外标法定量。氯氰菊酯、氰戊菊酯、溴氰菊酯在0.0005~0.5mg·kg-1范围内线性关系良好,相关系数分别为0.9995,0.9992,0.9991;在0.004~0.2 mg·kg-1添加浓度水平上,平均回收率分别为88.26%~107.73%,84.15%~100.21%和79.27%~106.71%,相对标准偏差（RSD）分别为0.46%~10.57%,1.63%~5.57%和0.92%~5.86%。方法检出限分别为0.72、0.72、0.66μg·kg-1;定量限分别为2.4、2.4、2.2μg·kg-1。
A HPGC method was established to determine cypennethrin fenvalerate and deltamethrin residues in aquatic products. Pyrethroids residues in samples were extracted by acetonitrile, purified by neutral alumina column.Low polarity compounds with hexane to remove. Sample analysis was performed by using GC-ECD with a DB-5 capillary column （30 m×0.32 mm ×0.32 μm）. The linear range was O. 0005 -0.50 mg· kg^-1 , linear correlation coefficient was 0.9995, 0.09992 and 0.09991, respectively. The average recoveries of cyper- methrin fenvalerate and deltamethrin were 88.26 % - 107.73 %, 84.15 % - 100.21% and 79.27 % - 106.71%. Their RSD were 0. 46 % - 10. 57 %, 1.63 % - 5.57 % and 0.92 % - 5.86 %. The limit of detection （LOD） was 0.72, 0.72 and 0.66 μg · kg^-1. The limit of quantification （LOQ） was 2.4, 2.4 and 0.22μg·kg^-1.
出处
《西南农业学报》
CSCD
北大核心
2015年第3期1390-1394,共5页
Southwest China Journal of Agricultural Sciences
基金
重庆市基本科研业务费计划项目(2014csts-jbky-00405)
