| 液液萃取-气相色谱法测定水体中的45种有机氯和菊酯类农药残留 |
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| 引用本文： | 杨梅. 液液萃取-气相色谱法测定水体中的45种有机氯和菊酯类农药残留[J]. 农药科学与管理, 2014, 35(10): 32-38 |
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| 作者姓名： | 杨梅 |
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| 作者单位： | 上海天祥质量技术服务有限公司食品部,上海,200233 |
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| 摘 要： | 本文研究了液液萃取-气相色谱方法测定水体中有机氯和菊酯类农药残留的方法。用环己烷从水体中提取净化45种农药残留,运用GC-ECD进行分析。用外标法定量,加标浓度分别为0.005,0.05,0.1μg/mL时,回收率在70.36~114.96%之间,相对偏差≤10%。方法检出下限为0.001~0.005μg/mL,用该方法可实现对水体中农药残留的检测。
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| 关 键 词： | 液液萃取 气相色谱 有机氯和菊酯类农残 |
Determination of 45 Pesticides Residues in Water by GC |
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| Yang Mei. Determination of 45 Pesticides Residues in Water by GC[J]. Pesticide Science and Administration, 2014, 35(10): 32-38 |
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| Authors: | Yang Mei |
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| Affiliation: | Yang Mei (Shanghai Intertek Co., Ltd., (ITS), Food Lab., Shanghai 200233, China) |
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| Abstract: | An analytic method was developed for the determination of the residues of 45 herbicides in water by GC-ECD. 45 pesticides were abstracted from water by cyclohexane, and analyzed by GC-ECD with external standard method. When pesticide residues in sample at the concentrations of 0.005, 0.05 and 0.1μg/mL, the recoveries were in the range of 70.36%～114.96%.The limits of detection were in the range of 0.001～0.005μg/mL. It was confirmed that the proposed method can be applied in water analysis. |
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| Keywords: | liquid-liquid extraction GC-ECD organochlorine and pyrethroid pesticides |
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