摘要
建立了白芍和黄连两种中药材中六六六、滴滴涕、艾氏荆、五氯硝基苯、甲氰菊酯、氯菊酯、氯氰菊酯、氰戊菊酯、溴氰菊酯等农药的多残留气相色谱分析方法。在索氏提取器中以石油醚（60-90℃）为溶剂提取样品，提取液经氧化铝与弗罗里硅土的混合柱净化，采用农残分析专用柱农残Ⅱ柱分离，GC—ECD检测器检测农药的残留量。方法的最小检出量（LOD）为0．0005—0．0060ng。最低检测浓度（LOQ）为0．005～0．050mg／kg；3个添加水平农药的平均回收率为79．8％～114．6％，相对标准偏差（RSD）均小于10％（n=6）。
A method for rapid determination of fifteen organochlorine and pyrethroid insecticide residues （ included α-HCH,β-HCH, γ-HCH, δ-HCH, p, p＇-DDE, o, p＇-DDT, p, p＇-DDD, p, p＇-DDT, PCNB, alddn, fenpropathrin, permethrin, cypermethrin, fenvalerate, deltarnethrin ） in two kinds of Chinese crude drugs （Raidix paeoniae Alba and Rhizoma coptidis） were developed. The sample was extracted in Soxhlet with petroleum ether （60 - 90℃ ） and cleaned up with the mixture of aluminum oxide-florisil （5 g and 7 g）, detected by GC-ECD. The limit of detection （LOD） of 15 organochlorine and pyrethroid insecticides were 0. 000 5 - 0. 006 0 ng, and the limit of quantitation （LOQ） of the method for 15 organochlorine and pyrethroid insecticides in Raidix paeoniae Alba and Rhizoma coptidis were 0.005 -0. 050 mg/kg, and fortified recovery Of pesticides at three levels were 79.8 % - 114.6%, the RSD were below 10% （n =6）.
出处
《农药学学报》
CAS
CSCD
2006年第1期65-70,共6页
Chinese Journal of Pesticide Science
关键词
中药材
白芍
黄连
有机氯
拟除虫菊酯
农药多残留分析
Chinese crude drug
Raidix paeoniae Alba
Rhizoma coptidis
organochlorine
pyrethroid pesticide multi-residue analysis
