| 稻米中9种有机磷杀虫剂多残留测定方法研究 |
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| 引用本文： | 沈群超,陈华才.稻米中9种有机磷杀虫剂多残留测定方法研究[J].安徽农学通报,2007,13(7):72-74. |
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| 作者姓名： | 沈群超 陈华才 |
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| 作者单位： | 1. 慈溪市农业监测中心,浙江慈溪,315300;2. 中国计量学院,浙江杭州,310018 |
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| 基金项目： | 慈溪市科技计划项目(CN2004032)，宁波市科技计划项目(2005C100054)部分内容 |
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| 摘 要： | 介绍了稻谷及糙米中9种有机磷杀虫剂残留量的快速测定方法.以乙腈提取样品中的农药,浓缩并用丙酮定容,GC-FPD检测结果表明,该方法分离度好,灵敏度满足检测要求,方法的最小检出浓度为0.012-0.023ug/mL,当添加浓度为0.1-1mg/kg范围时,稻谷中的添加回收率为71.9%-109.9%,相对标准偏差为3.68%-13.73%;糙米中的添加回收率为74.5%-105.2%,相对标准偏差为2.49%-14.53%.该方法简便快速,灵敏准确,符合农药残留检测的技术要求.
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| 关 键 词： | 稻谷 有机磷杀虫剂 多残留检测 气相色谱 |
| 文章编号： | 1007-7731（2007）07-72-03 |
| 收稿时间： | 2007-03-05 |
| 修稿时间： | 2007年3月5日 |
Multi-residuce determination of organophosphorrus pesticides in rice |
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| Shen Qunchao,Chen Huacai.Multi-residuce determination of organophosphorrus pesticides in rice[J].Auhui Agricultural Science Bulletin,2007,13(7):72-74. |
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| Authors: | Shen Qunchao Chen Huacai |
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| Institution: | 1 Cixi Agricultural Monitoring Center, Cixi, Zhejiang Prov. 315300; 2 China Estimation College, Hangzhou, Zhejiang Prov. 310018 |
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| Abstract: | A method of nine organophosphorus pesticides in rice were described. The residues of pesticides were extracted from samples with acetonitrile, concentrated and fixed with acetone and detected by gas capillary chromatography with FPD detector. Results showed that the nine organophosphorus were separated entirely. The minimum detection limits ranged were 0.012 -0.023ug/mL. When fortified level ranged from 0. 1 - lmg/kg, the recoveries were found 71.9 - 109.9%, with RSD ranged from 3.68% to13.73% in rice; he 74.5 - 105.2% , with RSD from 2.49% to14.53% in unpolished rice. The method was rapid, practical and up to the request of multi - residues determination. |
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| Keywords: | rice Organophosphorus pesticides multi-residues determination GC |
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