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Position: Home > Articles > Determination of Carfentrazone-ethyl Residues in Soil,Rice and Straw by MSPD-GC Agrochemicals 2012,51 (2) 121-123

MSPD-GC测定水稻土壤、糙米和秸秆中唑草酮残留

作  者:
王点点;宋宁慧;石利利;孔德洋
单  位:
南京信息工程大学环境科学与工程学院;环境保护部南京环境科学研究所
关键词:
唑草酮;基质固相分散;气相色谱;水稻;残留
摘  要:
[方法]采用基质固相分散技术从3种基质(土壤、糙米、秸秆)中提取、净化除草剂唑草酮,用气相色谱法进行检测。方法以N-丙基-乙二胺(PSA)为吸附剂,以正己烷-丙酮(体积比6∶4)混合溶剂为洗脱溶剂,实现了样品快速制备。利用所建立的方法进行0.005、0.05、0.1 mg/kg三个水平的加标回收试验。[结果]唑草酮的回收率在84.9%~96.7%之间,相对标准偏差1.5%~3.0%,检出限为3×10-14g。[结论]均符合农药残留分析方法的技术要求。
译  名:
Determination of Carfentrazone-ethyl Residues in Soil,Rice and Straw by MSPD-GC
作  者:
WANG Dian-dian1,2,SONG Ning-hui2,SHI Li-li2,KONG De-yang2(1.Institute of Environmental Science and Engineering,Nanjing University of Information Science & Technology,Nanjing 210044,China;2.Nanjing Institute of Environmental Science,Ministry of Environmental Protection of the People's of China,Nanjing 210042,China)
关键词:
carfentrazone-ethyl;matrix solid-phase dispersion;GC;rice;residue
摘  要:
[Methods] The matrix solid-phase dispersion(MSPD) and gas chromatography connected with electron-capture detector(GC-ECD) was used for determination of carfentrazone-ethyl residues in soil,rice and straw using primary second amine(PSA) as sorben and n-hexane/acetone(6∶4,by vol) as elution solvent.[Results] The results showed that in three kinds of rice samples with different concentrations,the average recoveries were 84.9-96.7%,and the relative standard deviations were between 1.5 and 3.0%.The limit of detection was 3×10-14 g.[Conclusions] All met the technical requirements of pesticide residue analysis.

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