高毒有机磷农药
高毒有机磷农药的相关文献在2002年到2013年内共计205篇,主要集中在植物保护、化学工业、工业经济
等领域,其中期刊论文205篇、专利文献2881182篇;相关期刊66种,包括江苏农村经济:品牌农资、科技致富向导、植物医生等;
高毒有机磷农药的相关文献由116位作者贡献,包括刘刚、于改莲、张为农等。
高毒有机磷农药—发文量
专利文献>
论文:2881182篇
占比:99.99%
总计:2881387篇
高毒有机磷农药
-研究学者
- 刘刚
- 于改莲
- 张为农
- 赵郁强
- 张夕林
- 李学峰
- 李建辉
- 汪凌云
- 余晓江
- 俞玮
- 敖聪聪
- 李永平
- 李红梅
- 王停
- 王尤景
- 王鹏
- 罗胜军
- 高强
- 丁兰兰
- 严玉昕
- 乔日红
- 于小娜
- 余显茂
- 余露
- 冀农宣
- 农信
- 刘云
- 刘共华
- 刘小文
- 刘立潮
- 华辑
- 卢育辉
- 叶敏
- 吕艳
- 君红
- 吴国星
- 吴志凤
- 吴蓉
- 吴铭
- 均华
- 姜书凯
- 姜洪丽
- 姜海平
- 姜蕾
- 孙思萧
- 小章
- 张昌军
- 张杨
- 张玉巧
- 张玉甜
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邹孝;
李正跃;
高熹;
刘小文;
肖昭竟;
段云鹏;
胡羽;
吴国星;
叶敏;
肖春
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摘要:
A multiresidue method based on gel permeation chromatography(GPC) for the sample preparation and gas chromatography-mass spectrometry analysis was developed to determine five high-toxic organic phosphorus pesticides residues in tea.The sample were extracted using acetone.Then the extracts were eluted with ethyl acetate/cyclohexane(1:1) by GPC.After dehydrated and concentrated to a definite volume,the pesticides were finally determined by gas chromatography-mass spectrometry in selective-ion Monitor(SIM) simultaneously,and quantified by external standard method.The results showed a good linear relationship was obtained between concentration and peak area within the 0.005~0.500 mg/L range.Average recoveries of 5 pesticides at three fortified levels were 99.68 %~106.31 %,94.14 %~98.11 % and 93.86 %~98.21 %,respectively.The relative standard deviation of the method was less than 10 % in every case,respectively.The limits of detection of 5 pesticides were ranging from 0.0005~0.0020 mg/kg.%本研究建立了以凝胶渗透色谱(gel permeation chromatography,GPC)为样品前处理方法,同时以气相色谱-质谱联用(gas chromatography-mass spectrometry,GC-MS)技术分析茶叶中五种高毒有机磷农药残留量的方法。样品用丙酮提取,共提物用乙酸乙酯:环己烷(1:1,V/V)作流动相的GPC净化,脱水浓缩定容,采用气相色谱-质谱联用,在选择离子监测模式下进行检测,用外标法定量。结果表明,浓度与其峰面积在0.005~0.500 mg/L范围内具有良好的线性关系,3个添加水平的平均回收率分别为:99.68%~106.31%,94.14%~98.11%,93.86%~98.21%,相对标准偏差(RSD)均小于10%,检出限为0.0005~0.0020 mg/kg。
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