| 气相色谱法测定几种蔬菜水果中草甘膦残留 |
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| 引用本文： | 马为民,牛森,李东运,王利营,崔霞,张洪玲,刘笑. 气相色谱法测定几种蔬菜水果中草甘膦残留[J]. 农药, 2006, 45(4): 261-262 |
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| 作者姓名： | 马为民 牛森 李东运 王利营 崔霞 张洪玲 刘笑 |
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| 作者单位： | 沈阳农业大学,辽宁,沈阳,110161;河北科技师范学院,河北,秦皇岛,066000;沈阳农业大学,辽宁,沈阳,110161;昌黎县疾病预防控制中心,河北,昌黎,066600;秦皇岛港务集团有限公司,河北,秦皇岛,066002 |
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| 摘 要： | 采用气相色谱法测定了苹果、桃、胡萝卜中革甘膦残留。通过阳离子柱净化，用三氟乙酸（TFA）、三氟乙酸酐（TFAA）和三甲基原甲酸酯（TMOA）进行衍生化反应，并在毛细管柱DB-17上分离后，ECD检测，质谱确证后，对其结果进行了分析。结果表明，该检测方法灵敏度高，最低检测限0．05mg／kg（S／N〉3）。平均添加回收率苹果93％、桃89％、胡萝卜92％，变异系数分别为10％、12％、10％。
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| 关 键 词： | 草甘膦 气相色谱 衍生 残留 |
| 文章编号： | 1006-0413（2006）04-0261-02 |
| 收稿时间： | 2005-07-26 |
| 修稿时间： | 2005-07-262005-11-03 |
Determining glyphosate residues in vegetables and fruits by gas chromatography |
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| MA Wei-min,NIU Sen,LI Dong-yun,WANG Li-ying,CUI Xia,ZHANG Hong-ling,LIU Xiao. Determining glyphosate residues in vegetables and fruits by gas chromatography[J]. Pesticides, 2006, 45(4): 261-262 |
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| Authors: | MA Wei-min NIU Sen LI Dong-yun WANG Li-ying CUI Xia ZHANG Hong-ling LIU Xiao |
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| Affiliation: | 1 .Shenyang Agricultural University, Shenyang 110161, Liaoning, China; 2.Hebei Normal University of Science and Technology Qinhaangdao 066000, Hebei, China; 3.Changli Centers for Disease Control and Prevention, Changli 066600, Hebei, China; 4.Qinhuangdao Port Group Coporation Limited, Qinhuangdao 066002, Hebei, China |
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| Abstract: | Glyphosate residues in apple, peach, and carrot were determined by gas chromatography. Following cleanup of extracts on a cation exchange column, they were reacted with trifluoroacetic acid, trifluoroacetic anhydride, andtrimethyl orthoformate. Samples were separated using a DB-17 microcapillary column, followed by detection withECD and confirmation with mass spectroscopy, and analysis of results. Sensitivity of the method was high, with alimit of detection at 0.05 mg/kg (S/N>3). Mean recoveries from apple, peach, and carrot were 93, 89, and 92%, andcoefficients of variation were 10, 12, and 10%, respectively. |
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| Keywords: | glyphosate gas chromatography derivative residue |
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