| 20种农药在作物中多残留分析方法的研究 |
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| 引用本文： | 沈在忠,钱传范.20种农药在作物中多残留分析方法的研究[J].环境科学学报,1991,11(2):223-230. |
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| 作者姓名： | 沈在忠 钱传范 |
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| 作者单位： | 北京农业大学
(沈在忠)，北京农业大学(钱传范) |
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| 摘 要： | 报道了20种有机氯、有机磷和拟除虫菊酯类农药在作物中多残留气相色谱分析方法。9种有机磷农药的最低检测浓度为0.34—22.30ppb,8种有机氯农药为0.13—9.76ppb,3种拟除虫菊酯为1.63—17.00ppb。20种农药在四种作物上的添加回收率大于80％,仅敌敌畏与速灭磷在低浓度(0.05ppm)时,回收率偏低。变异系数都小于10％。
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| 关 键 词： | 农药 作物 残留量 分析法 |
| 收稿时间： | 1989/11/21 0:00:00 |
MULTIRESIDUE ANALYSIS OF 20 PESTICIDES IN CROPS |
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| Shen Zaizhong and Qian Chuanfan.MULTIRESIDUE ANALYSIS OF 20 PESTICIDES IN CROPS[J].Acta Scientiae Circumstantiae,1991,11(2):223-230. |
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| Authors: | Shen Zaizhong and Qian Chuanfan |
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| Institution: | Beijing Agricultural University |
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| Abstract: | A multiresidue analysis method for 20 organochlorinate organophosphorous and pyrethroid pesticides in crops using GLC was developed. The samples were extracted with acetone or acetone-petroleum ether (1:1 (v/v))and partitioned with methylene chloride, to remove aqueous phase. The extracts were divided into two parts. One part was used for determination of organophosphorous pesticides by GLC FPD.The organochlori-nated and pyrethroid pesticides in the another part were determined by GLC ECD after cleaning up. The efficiency of the clean up procedures and sensitivity of the analytical method were evaluated suing apple, cucumber, flour and rice samples fortified with the pesticides. |
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| Keywords: | Multiresidue analysis pesticides |
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