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题目：Identification of multi-insecticide residues using GC-NPD and the degradation kinetics of chlorpyrifos in sweet corn and soils

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https://apps.webofknowledge.com/ ... age=1&doc=1
Identification of multi-insecticide residues using GC-NPD and the degradation kinetics of chlorpyrifos in sweet corn and soils.
作者:Wang, Peidan; Rashid, Muhammad; Liu, Jie; Hu, Meiying; Zhong, Guohua

Food chemistry

卷:212
页:420-6
DOI:10.1016/j.foodchem.2016.05.008

出版年:2016-Dec-1 (Epub 2016 May 02)

摘要

Because more than one insecticide is applied to crops to protect plants from pests, an analytical multi-residue determination method was developed using gas chromatography with a nitrogen phosphorus detector (GC-NPD). The retention time for 12 insecticides was 3.7-27.7min. Under the selected conditions, the limits of detection (LOD) and quantification (LOQ) were below the maximum residue limits (MRLs) and in the range of 0.00315-0.05mugmL(-1) and 0.01-0.165mugmL(-1), respectively. Using GC-NPD, we investigated the dissipation dynamics and final residual levels of chlorpyrifos in sweet corn and soil and determined that the half-lives was 4-7days, that is, that chlorpyrifos is safe to use on sweet corn with a pre-harvest interval of 16-22days before harvest. These results provide new insights into chlorpyrifos degradation in plants and its environmental behavior.
Copyright 2016. Published by Elsevier Ltd.

关键词
关键词列表:Chlorpyrifos; GC-NPD; Pesticide residue; Soil; Sweet corn

作者信息
地址:Laboratory of Insect Toxicology and Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou 510642, PR China.

文献信息
文献类型:Journal Article

语种:English

PubMed ID:27374551

NLM 唯一 ID:7702639

创建日期: 04 Jul 2016

电子出版:02 May 2016

国家/地区: England

ISSN:0308-8146

其他信息
分主题子库:Index Medicus

状态:In-Data-Review

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