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Citation: CHEN Dan, CHU Li-Wei, HOU Zhi-Guang, SHANG Mei, FAN Zhi-Xian, LI Yue-Ru. Determination of Organochlorine Pesticide Residues in Preserved Ginseng by Solid-Phase Extraction and Capillary Gas Chromatography[J]. Chinese Journal of Applied Chemistry, ;2007, 24(2): 210-214. shu

Determination of Organochlorine Pesticide Residues in Preserved Ginseng by Solid-Phase Extraction and Capillary Gas Chromatography

1.
a Test Center, Jilin Agricultural University, Changchun 130118;
2.
b Qingdao Technological University, Qingdao

Received Date: 8 March 2006
Available Online: 19 August 2006
Fund Project: 农业部标准资助项目(02098) (02098)

The solid-phase extraction and capillary gas chromatography(SPE-CGC) was introduced for the determination of 19 kinds of organochlorine pesticide residues including 4 isomers of hexachlorocyclohexane (BHC)(α-BHC,β-BHC,γ-BHC,δ-BHC);5 isomers of 4,4'-dichl-orodiphenyhhrichloroethane,(DDT)(pp'-DDE,pp'-DDD,op'-DDT,op'-DDE and pp'-DDT);tetra,penta-chloroaniline;heXachlorobenzene; heptachlor;quintozene;chlor-othalonil;heptachlor epoxide;aldrin;dieldrin and endlrin in preserved ginseng,ginseng honey plate and ginseng tea.The organochlorine pesticides were extracted form the samples with the solvents of the mixture of petrolic-aether acetone,followed by the purification with SPEC10 solid-phase extraction column.Then the extract was separated by using gas chromatography and OV-1701 flexible quartz capillary(25 m×0.25 mm×0.5μm) chromatographic column.Sample was detected by ⁶³Ni electron capture detector(ECD) with N₂(99.99%) as the carrier gas.The temperatures of the injector and detector were both at 300℃and increased automatically.The good linearity were obtained for the 19 kinds of organi-chlorine pesticides with the average relative coefficient larger than 0.992.The minim detectable sample wasl.5×10¹³~2.5×10¹²g,and the average recoveries range was from 73.7% to 96.6%.
- capillary gas chromatography,
- organochlorine pesticide,
- solid-phase extraction,
- preserved ginseng
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