| 玉米中氯氰菊酯、溴氰菊酯SPE净化及不确定度分析 |
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| 引用本文： | 方学智,费学谦,丁明,姚小华.玉米中氯氰菊酯、溴氰菊酯SPE净化及不确定度分析[J].农药,2009,48(2). |
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| 作者姓名： | 方学智 费学谦 丁明 姚小华 |
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| 作者单位： | 中国林科院,亚热带林业研究所,浙江,富阳,311400 |
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| 摘 要： | 应用SPE净化代替GB/T 5009.146-2003的传统净化法,并对其玉米中氯氰菊酯、溴氰菊酯测定数据的不确定度进行了分析.研究结果表明:用15 mL石油醚,乙酸乙酯(体积比95:5)淋洗氯氰菊酯和溴氰菊酯的回收率最高,分别达到了102.07%和80.86%,且在0.005～1 mg/L之间具有0.995以上相天性.通过对应用SPE测定的不确定分析,氯氰菊酯和溴氰菊酯都具有较小的不确定度,分别为1.86%和1.91%,其不确定的主要来源为标准溶液的配制和样品的称量、定容.
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| 关 键 词： | SPE净化 氯氰菊酯 溴氰菊酯 不确定度 玉米 |
Purification of Permethrin and Deltamethrin in Maize by SPE and Evaluation of Uncertainty |
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| FANG Xue-zhi,FEI Xue-qian,DING Ming,YAO Xiao-hua.Purification of Permethrin and Deltamethrin in Maize by SPE and Evaluation of Uncertainty[J].Pesticides,2009,48(2). |
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| Authors: | FANG Xue-zhi FEI Xue-qian DING Ming YAO Xiao-hua |
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| Affiliation: | Research Institute of Subtropical Forestry;Chinese Academy of Forestry;Fuyang 311400;Zhejiang;China |
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| Abstract: | Solid phase extraction (SPE) technology was applied to substitute for the traditional glass chromatographic clean method in GB/T 5009.146-2003, and uncertainty of permethrin and deltamethrin in maize was evaluated as well. Results are as following: the optimal eluting volume was 15 mL petroleum ether and ethyl acetate (95:5, by vol) through elution curve, the recovery was 102.07 and 80.86% respectively. The linear ranges of standard curve were between 0.005-1 mg/L, R>0.995. After calculated, we got the unce... |
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| Keywords: | SPE permethrin deltamethrin uncertainty maize |
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