| MSPD-GC测定水稻土壤、糙米和秸秆中唑草酮残留 |
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| 引用本文： | 王点点,宋宁慧,石利利,孔德洋.MSPD-GC测定水稻土壤、糙米和秸秆中唑草酮残留[J].农药,2012,51(2):121-123. |
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| 作者姓名： | 王点点 宋宁慧 石利利 孔德洋 |
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| 作者单位： | 1. 南京信息工程大学环境科学与工程学院,南京210044;环境保护部南京环境科学研究所,南京210042
2. 环境保护部南京环境科学研究所,南京,210042 |
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| 基金项目： | 中央级公益性科研院所基本科研业务费专项资金项目农产品与产地环境中农药残留快速筛查与检测技术的构建 |
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| 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3×10-14 g.结论]均符合农药残留分析方法的技术要求.
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| 关 键 词： | 唑草酮 基质固相分散 气相色谱 水稻 残留 |
Determination of Carfentrazone-ethyl Residues in Soil, Rice and Straw by MSPD-GC |
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| WANG Dian-dian
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SONG Ning-hui
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SHI Li-li
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KONG De-yang.Determination of Carfentrazone-ethyl Residues in Soil, Rice and Straw by MSPD-GC[J].Pesticides,2012,51(2):121-123. |
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| Authors: | WANG Dian-dian SONG Ning-hui SHI Li-li KONG De-yang |
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| Affiliation: | 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) |
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| Abstract: | 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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| Keywords: | carfentrazone-ethyl matrix solid-phase dispersion GC rice residue |
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