Determination of pesticides residues in vegetable and fruit samples by solid‐phase microextraction with a covalent organic framework as the fiber coating coupled with gas chromatography and electron capture detection

Wang Mengting; Zhou Xin; Zang Xiaohuan; Pang Yachao; Chang Qingyun; Wang Chun; Wang Zhi

摘要

Abstract > In this study, a covalent organic framework designated as TpPaNO <sub>2</sub> was synthesized by a mechanochemical grinding method and then coated on stainless steel wire by a sol‐gel technique to prepare a solid‐phase microextraction fiber. The TpPaNO <sub>2</sub> fiber based solid‐phase microextraction coupled with gas chromatography‐electron capture detection was applied to determine the residues of 11 pesticides (trlfuralln, dicofol, α‐ endosulfan, 1‐chloro‐4‐[2,2‐dichloro‐1‐(4‐chlorophenyl)ethenyl]benzene, nitrofen, β‐ endosulfan, 1‐chloro‐4‐[2,2‐dichloro‐1‐(4‐chlorophenyl)ethyl]benzene, 1,1,1‐trichloro‐2,2‐bis(4‐chlorophenyl)ethane, bifenthrin, permethrin and fenvalerate) in vegetable and fruit samples. The effects of extraction time, extraction temperature, sample pH, stirring rate and desorption temperature on the extraction efficiency were investigated. Under the optimized conditions, the limits of detection for the eleven pesticides were in the range of 0.04–0.25?μg/kg. The recoveries of the eleven pesticides in the vegetable and fruit samples were 81.5–111% with the relative standard deviations less than 11.2%. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract Type =“Main”XML：Lang =“en”> <标题类型=“main”>抽象</ title> >在本研究中，一个指定为TPPano <sub> 2 </ sub>的共价有机框架通过机械化学研磨方法合成，然后通过溶胶 - 凝胶技术涂覆在不锈钢线上，制备固相微萃取纤维。施加与气相色谱 - 电子捕获检测的TPPano <sub> 2 </ sub>纤维相色微萃取物，以确定11种农药的残留物（Trlfuralln，Dicofol，α - </ i>硫丹-Chloro-4- [2,2-二氯-1-（4-氯苯基）乙烯基]苯，硝基，<I>β - / I>硫丹，1-氯-4- [2,2-二氯-1 - （4-氯苯基）乙基]苯，1,1,1-三氯-2,2-双（4-氯苯基）乙烷，蔬菜和水果样品中的二氯蛋白，PERETHRIN和FENVALEDE）。研究了提取时间，提取温度，样品pH，搅拌速率和解吸温度对提取效率的影响。在优化条件下，对11种农药的检测限为0.04-0.25Ωμg/ kg。蔬菜和水果样品中11种农药的回收率为81.5-111％，相对标准偏差小于11.2％。 </ p> </ abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-35800/'>《Journal of separation science.》</a> <b style="margin: 0 2px;">|</b><span>2018年第21期</span><b style="margin: 0 2px;">|</b><span>共9页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Wang Mengting&option=202" target="_blank" rel="nofollow">Wang Mengting;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Zhou Xin&option=202" target="_blank" rel="nofollow">Zhou Xin;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Zang Xiaohuan&option=202" target="_blank" rel="nofollow">Zang Xiaohuan;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Pang Yachao&option=202" target="_blank" rel="nofollow">Pang Yachao;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Chang Qingyun&option=202" target="_blank" rel="nofollow">Chang Qingyun;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Wang Chun&option=202" target="_blank" rel="nofollow">Wang Chun;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Wang Zhi&option=202" target="_blank" rel="nofollow">Wang Zhi;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Department of ChemistryHebei Agricultural UniversityBaoding China;</p> <p>Department of ChemistryHebei Agricultural UniversityBaoding China;</p> <p>Department of ChemistryHebei Agricultural UniversityBaoding China;</p> <p>Department of ChemistryHebei Agricultural UniversityBaoding China;</p> <p>Department of ChemistryHebei Agricultural UniversityBaoding China;</p> <p>Department of ChemistryHebei Agricultural UniversityBaoding China;</p> <p>Department of ChemistryHebei Agricultural UniversityBaoding China;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/159.html" title="化学">化学;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=covalent organic frameworks&option=203" rel="nofollow">covalent organic frameworks;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=electron capture detection&option=203" rel="nofollow">electron capture detection;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=gas chromatography&option=203" rel="nofollow">gas chromatography;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=pesticides&option=203" rel="nofollow">pesticides;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=solid‐phase microextraction&option=203" rel="nofollow">solid‐phase microextraction;</a> </p> <div class="translation"> 机译：共价有机框架;电子捕获检测;气相色谱;杀虫剂;固相微萃取; 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href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=刘晓婷&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,刘晓婷</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=权新军&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,权新军</a> <span> <a href="/conference-cn-11566/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 第十六届有机分析与生物分析学术研讨会 </a> <span> <span> . 2011</span> </span> </div> </li> <li> <div> <b>7. </b><a class="enjiyixqcontent" href="/academic-degree-domestic_mphd_thesis/020315191558.html">新型固相微萃取纤维萃取结合气相色谱检测食品和环境样品中的污染物残留</a> <b>[A] </b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=王梦婷&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 王梦婷</a> <span> . 2019</span> </span> </div> </li> </ul> <ul style="display: none;"> <li> <div> <b>1. </b><a class="enjiyixqcontent" 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