Determination of siloxanes in water samples employing graphene oxide/Fe        <sub >3</sub>3        O        <sub >4</sub>4        nanocomposite as sorbent for magnetic solid‐phase extraction prior to GC–MS

Costa dos Reis Luciana; Vidal Lorena; Canals Antonio

摘要

Abstract > A new, fast, simple, and environmentally friendly analytical method has been developed to determine six siloxanes in water samples: octamethyltrisiloxane, octamethylcyclotetrasiloxane, decamethyltetrasiloxane, decamethylcyclopentasiloxane, dodecamethylpentasiloxane and dodecamethylcyclohexasiloxane. The analytical method consists of magnetic solid‐phase extraction employing graphene oxide/Fe <sub>3</sub> O <sub>4</sub> as sorbent for the separation and preconcentration of siloxanes prior to GC–MS determination. The extraction procedure was optimized by means of a Plackett‐Burman design. Under the optimized extraction conditions (graphene oxide/Fe <sub>3</sub> O <sub>4</sub> , 20?mg; extraction time, 10?min; eluent volume, 0.5?mL ACN; elution time, 2.5?min; sample volume, 20?mL), the method rendered repeatability levels with a relative standard deviation between 9 and 20% ( n ?=?6, 10?μg/L). Methodological limits of detection ranged from 0.003 to 0.1?μg/L. The linearity of the method was studied between the methodological limit of quantification and 100?μg/L, obtaining correlation coefficient values between 0.990 and 0.999. The applicability of the method was assessed by analyzing drinking, river and wastewater samples. Relative recovery values ranged between 70 and 120% (1 and 60?μg/L spiking level) showing that the matrix had a negligible effect on extraction. Finally, the greenness of this method was confirmed by the semiquantitative Eco‐Scale metrics. </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”> <Title Type =“Main”> Abstract </ Title> <P>一种新的，快速，简单，环保的分析方法已经开发出六硅氧烷在水样中：八甲基三硅氧烷，八甲基环四硅氧烷，甲基四甲氧烷，甲甲基环戊硅氧烷，十二烷酰氨甲基硅氧烷和十二烷甲基环己硅氧烷。分析方法包括磁性固相提取，采用石墨烯氧化物/ Fe <Sub> 3 </ sub> O <sub> 4 </ sub>在GC-MS测定之前的硅氧烷的分离和前浓缩的吸附剂。通过Plackett-Burman设计进行了优化的提取程序。在优化的提取条件下（氧化石墨烯/ Fe <sub> 3 </ sub> O <sub> 4 </ sub>，20×mg;提取时间，10？min;洗脱量，0.5？ml ACN;洗脱时间， 2.5？分钟;样品体积，20？mL），该方法使重复性水平具有9至20％之间的相对标准偏差（ n </ i>Δ=α6,10≤μg/ l）。检测的方法论限制范围为0.003至0.1≤μg/升。研究了该方法的线性度，在定量的方法极限和100Ωμg/ L之间进行了研究，得到0.990和0.999之间的相关系数值。通过分析饮用，河流和废水样品来评估该方法的适用性。相对恢复值范围为70％至120％（1和60μg/ l尖刺级），显示基质对提取的影响可忽略不计。最后，通过半定量的Eco级度量证实了该方法的绿色。 </ 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22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=Costa dos Reis Luciana&option=202" target="_blank" rel="nofollow">Costa dos Reis Luciana;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Vidal Lorena&option=202" target="_blank" rel="nofollow">Vidal Lorena;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Canals Antonio&option=202" target="_blank" rel="nofollow">Canals Antonio;</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>Departamento de Química AnalíticaUniversidad de AlicanteAlicante Spain;</p> <p>Departamento de Química AnalíticaUniversidad de AlicanteAlicante Spain;</p> <p>Departamento de Química AnalíticaUniversidad de AlicanteAlicante Spain;</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=gas chromatography with mass spectrometry&option=203" rel="nofollow">gas chromatography with mass spectrometry;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=magnetic solid‐phase extraction&option=203" rel="nofollow">magnetic solid‐phase extraction;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=nanocomposites&option=203" rel="nofollow">nanocomposites;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=siloxanes&option=203" rel="nofollow">siloxanes;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=water samples&option=203" rel="nofollow">water samples;</a> </p> <div class="translation"> 机译：气相色谱法与质谱;磁性固相萃取;纳米复合材料;硅氧烷;水样; </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 >中文文献</li> <li >专利</li> </ul> </div> <div class="similarity_details"> <ul > <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704025846346.html">Determination of siloxanes in water samples employing graphene oxide/Fe <sub >3</sub>3 O <sub >4</sub>4 nanocomposite as sorbent for magnetic solid‐phase extraction prior to GC–MS</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Costa dos Reis Luciana&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Costa dos Reis Luciana,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Vidal Lorena&option=202" target="_blank" rel="nofollow" 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Determination of siloxanes in water samples employing graphene oxide/Fe 33 O 44 nanocomposite as sorbent for magnetic solid‐phase extraction prior to GC–MS

摘要

Determination of siloxanes in water samples employing graphene oxide/Fe ₃3 O ₄4 nanocomposite as sorbent for magnetic solid‐phase extraction prior to GC–MS