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Enhanced headspace single drop microextraction method using deep eutectic solvent based magnetic bucky gels: Application to the determination of volatile aromatic hydrocarbons in water and urine samples

机译:增强的顶部空间单滴微量萃取方法使用深凝胶基溶剂磁性抗胶质凝胶:应用于水和尿液样品中挥发性芳烃的施用

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Abstract >A facile headspace single drop microextraction method was developed using deep eutectic solvent‐based magnetic bucky gel as the extraction solvent for the first time. The hydrophobic magnetic bucky gel was formed by combining choline chloride/chlorophenol deep eutectic solvent and magnetic multiwalled carbon nanotube nanocomposite. Magnetic susceptibility, high viscosity, high sorbing ability, and tunable extractability of organic analytes are the desirable advantages of the prepared gel. Using a rod magnet as a suspensor in combination with the magnetic susceptibility of the prepared gel resulted in a highly stable droplet. This stable droplet eliminated the possibility of drop dislodgement. The prepared droplet made it possible to complete the extraction process in high temperatures and elevated agitation rates. Furthermore, using larger micro‐droplet volumes without any operational problems became possible. These facts resulted in shorter sample preparation time, higher sensitivity of the method, and lower detection limits. Under the optimized conditions, an enrichment factor of 520–587, limit of detection of 0.05–0.90?ng/mL, and linearity range of 0.2–2000?ng/mL (coefficient of determination?=?0.9982–0.9995) were obtained. Relative standard deviations were??10%. This method was successfully coupled with gas chromatography and used for the determination of benzene, toluene, ethylbenzene, and xylene isomers as harmful volatile organic compounds in water and urine samples. </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> >使用深凝固溶剂的磁性抗粘稠凝胶开发了易于顶部空间单滴微萃取方法萃取溶剂是第一次。通过组合氯化胆碱/氯酚深共晶溶剂和磁性多壁碳纳米管纳米复合材料来形成疏水性磁性抗凝胶。磁性敏感性,高粘度,高吸附能力和可调节有机分析物的可调性是所制备的凝胶的理想优势。使用杆磁体作为悬浮液与制备的凝胶的磁化率组合,导致高度稳定的液滴。这种稳定的液滴消除了Drop Dislolemement的可能性。制备的液滴使得可以在高温下完成提取过程和升高的搅拌速率。此外,使用没有任何操作问题的较大微液滴体积。这些事实导致样品制备时间较短,对方法的敏感性较高,检测限较低。在优化条件下,富集因子为520-587,检测限为0.05-0.90≤0.90μg/ ml,并获得0.2-2000Ω·ng / ml的线性范围(测定系数?= 0.9982-0.9995)。相对标准偏差是α≤1; 10%。该方法与气相色谱成功偶联,用于测定苯,甲苯,乙苯和二甲苯异构体,作为水和尿液中的有害挥发性有机化合物。</ p> </摘要> </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4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=Yousefi Seyedeh Mahboobeh&option=202" target="_blank" rel="nofollow">Yousefi Seyedeh Mahboobeh;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Shemirani Farzaneh&option=202" target="_blank" rel="nofollow">Shemirani Farzaneh;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Ghorbanian Sohrab Ali&option=202" target="_blank" rel="nofollow">Ghorbanian Sohrab Ali;</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 Analytical ChemistryUniversity of TehranTehran Iran;</p> <p>Department of Analytical ChemistryUniversity of TehranTehran Iran;</p> <p>Faculty of Chemical EngineeringUniversity of TehranTehran Iran;</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=deep eutectic solvents&option=203" rel="nofollow">deep eutectic solvents;</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=headspace single drop microextraction&option=203" rel="nofollow">headspace single drop microextraction;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=volatile organic compounds&option=203" rel="nofollow">volatile organic compounds;</a> </p> <div class="translation"> 机译:深度共晶溶剂;气相色谱;顶部空间单滴微萃取;挥发性有机化合物; </div> </li> <li> <span class="lefttit">入库时间</span> <span>2022-08-20 10:07:42</span> </li> </ul> </div> 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