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底物固相分散法测定肉苁蓉中有机氯的残留研究
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【西药学大专毕业论文】【摘要】 目的建立肉苁蓉中多种有机氯类农药同时检测的 方法 。方法运用底物固相分散（MSPD）法、气相色谱法同时测定肉苁蓉中六六六及滴滴涕七种异构体。结果六六六及滴滴涕七种异构体的加标回收率均大于80%，RSD<5%，肉苁蓉样品在优化的MSPD的实验条件下，无需进一步净化即可用于气相色谱检测。结论该方法具有试剂用量少，操作简便，快速等特点。
【关键词】 底物固相分散法； 有机氯农药； 肉苁蓉； 残留量
Abstract：ObjectiveTo determine the organochlorine pesticide residues in Herba Cistanches.MethodsSeven organochlorinated pesticide residues in Herba Cistanches were determined by matrix solid-phase dispersion method(MSPD) and gas chromatography .Results The recoveries of organochlorine pesticides in Herba Cistanches were above 80%. The relative standard deviations all were below 5%(n=5). The MSPD condition was optimized. Under the MSPD condition , no further cleanup was necessary for subsequent gas chromatographic determination. ConclusionThis method has features of fewer solvents, easy operation and rapidness.
Key words：Matrix solid-phase dispersion(MSPD)； O
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