Disposable Electrochemical Sensor for Rapid Determination of Ethyl Xanthate in the Mining Industry

Pedre Ignacio; Battaglini Fernando; González Graciela A.

摘要

Abstract >Xanthate is a widely used reagent in sulfide mineral flotation. A simple and reliable method is presented for the direct monitoring of xanthate in flotation baths and their effluents, as a tool for their reconditioning, and reducing their environmental impact. For this purpose, screen‐printed graphite electrodes (SPE) were modified with a polyelectrolyte‐surfactant matrix which was able to adsorb the xanthate, whose concentration is determined by electrochemical impedance spectroscopy (EIS) following the change in the electron transfer resistance of ferrocyanide after a pre‐oxidation treatment. Linear ranges from 0.25 to 1?μM and 15 to 100?μM were determined for effluents and flotation baths, respectively. A mechanism for the electron transfer process is proposed based on Quartz crystal microbalance, IR and cyclic voltammetry studies. </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> >黄原酸盐是硫化物矿物浮选中广泛使用的试剂。提出了一种简单可靠的方法，用于直接监测浮选浴及其流出物的黄原酸盐，作为其再修复的工具，并降低它们的环境影响。为此目的，用聚电解质 - 表面活性剂基质改性丝网印刷的石墨电极（SPE），其能够吸附黄原酸盐，其浓度通过电化学阻抗光谱（EIS）在铁氰化锰的电子转移性的变化之后的电化学阻抗光谱（EIS）之后预氧化处理。为流出物和浮选浴分别测定线性范围为0.25至1Ωμm和15至100？μm。基于石英晶微观，IR和循环伏安法研究提出了一种电子转移过程的机理。</ 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-22546/'>《Electroanalysis》</a> <b style="margin: 0 2px;">|</b><span>2018年第11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=Pedre Ignacio&option=202" target="_blank" rel="nofollow">Pedre Ignacio;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Battaglini Fernando&option=202" target="_blank" rel="nofollow">Battaglini Fernando;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=González Graciela A.&option=202" target="_blank" rel="nofollow">González Graciela A.;</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>INQUIMAE – Departamento de Química Inorgánica Analítica y Química Física –Facultad de Ciencias Exactas y Naturales1428 Buenos Aires Argentina;</p> <p>INQUIMAE – Departamento de Química Inorgánica Analítica y Química Física –Facultad de Ciencias Exactas y Naturales1428 Buenos Aires Argentina;</p> <p>INQUIMAE – Departamento de Química Inorgánica Analítica y Química Física –Facultad de Ciencias Exactas y Naturales1428 Buenos Aires Argentina;</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/4817.html" title="电化学、电解、磁化学">电化学、电解、磁化学;</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=Effluents&option=203" rel="nofollow">Effluents;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=electrochemical impedance spectroscopy&option=203" rel="nofollow">electrochemical impedance spectroscopy;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=flotation&option=203" rel="nofollow">flotation;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=mineral samples&option=203" rel="nofollow">mineral samples;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=xanthate&option=203" rel="nofollow">xanthate;</a> </p> <div class="translation"> 机译：流出物;电化学阻抗光谱;浮选;矿物样品;黄色酸盐; 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