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首页> 外文期刊>Journal of separation science. >Simultaneous derivatization and lighter‐than‐water air‐assisted liquid–liquid microextraction using a homemade device for the extraction and preconcentration of some parabens in different samples
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Simultaneous derivatization and lighter‐than‐water air‐assisted liquid–liquid microextraction using a homemade device for the extraction and preconcentration of some parabens in different samples

机译：使用自制装置同时衍生化和较轻的空气辅助液体微萃取，用于在不同样品中的一些羟基苯甲喷妥乙烯的提取和预浓缩

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Abstract > Simultaneous derivatization and air‐assisted liquid–liquid microextraction using an organic that is solvent lighter than water has been developed for the extraction of some parabens in different samples with the aid of a newly designed device for collecting the extractant. For this purpose, the sample solution is transferred into a glass test tube and a few microliters of acetic anhydride (as a derivatization agent) and p ‐xylene (as an extraction solvent) are added to the solution. After performing the procedure, the homemade device consists of an inverse funnel with a capillary tube placed into the tube. In this step, the collected extraction solvent and a part of the aqueous solution are transferred into the device and the organic phase indwells in the capillary tube of the device. Under the optimal conditions, limits of detection and quantification for the analytes were obtained in the ranges of 0.90–2.7 and 3.0–6.1?ng/mL, respectively. The enrichment and enhancement factors were in the ranges of 370–430 and 489–660, respectively. The method precision, expressed as the relative standard deviation, was within the range of 4–6% ( n? =?6) and 4–9% ( n? =?4) for intra‐ and interday precisions, respectively. The proposed method was successfully used for the determination of methyl‐, ethyl‐, and propyl parabens in cosmetic, hygiene and food samples, and personal care products. </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> >使用溶剂比水更轻的有机衍生和空气辅助液体微萃取已经开发用于在不同样品中提取一些羟基苯甲酸酯，借助于用于收集萃取剂的新设计的装置。为此目的，将样品溶液转移到玻璃试管中，并将少量微升乙酸酐（作为衍生化剂）和<I> P-I> - 溶液加入溶液中。在执行该过程之后，自制装置由逆漏斗组成，该反向漏斗与放入管中的毛细管。在该步骤中，将收集的提取溶剂和水溶液的一部分转移到装置中，有机相在装置的毛细管中。在最佳条件下，分析物的检测限和分析物的定量分别在0.90-2.7和3.0-6.1〜Ng / ml的范围内得到。富集和增强因素分别为370-430和489-660的范围。表达为相对标准偏差的方法精度在4-6％（ n = = =Δ6）的范围内，4-9％（ n？</ i> = ？4）分别用于内部和中间的精度。所提出的方法成功地用于测定化妆品，卫生和食品样品中的甲基，乙基和丙酰胺，以及个人护理产品。 </ 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15期</span><b style="margin: 0 2px;">|</b><span>共8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=Farajzadeh Mir Ali&option=202" target="_blank" rel="nofollow">Farajzadeh Mir Ali;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Bakhshizadeh Aghdam Mehri&option=202" target="_blank" rel="nofollow">Bakhshizadeh Aghdam Mehri;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Afshar Mogaddam Mohammad Reza&option=202" target="_blank" rel="nofollow">Afshar Mogaddam Mohammad Reza;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Alizadeh Nabil Ali Akbar&option=202" target="_blank" rel="nofollow">Alizadeh Nabil Ali Akbar;</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 TabrizTabriz Iran;</p> <p>Department of Analytical ChemistryUniversity of TabrizTabriz Iran;</p> <p>Pharmaceutical Analysis Research CenterTabriz University of Medical SciencesTabriz Iran;</p> <p>Food and Drug Safety Research CenterTabriz University of Medical SciencesTabriz 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=air‐assisted liquid–liquid microextraction&option=203" rel="nofollow">air‐assisted liquid–liquid microextraction;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=derivatization&option=203" rel="nofollow">derivatization;</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=parabens&option=203" rel="nofollow">parabens;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=preservatives&option=203" rel="nofollow">preservatives;</a> </p> <div class="translation"> 机译：空气辅助液液微萃取;衍生化;气相色谱;羟基苯甲酸酯;防腐剂; </div> </li> </ul> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" id="enpatent66">相似文献</h3> <div class="similaritytab clearfix"> <ul> <li class="active" >外文文献</li> <li >专利</li> </ul> </div> <div class="similarity_details"> <ul > <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704025846943.html">Simultaneous derivatization and lighter‐than‐water air‐assisted liquid–liquid microextraction using a homemade device for the extraction and preconcentration of some parabens in different samples</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Farajzadeh Mir 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