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NMR Spectroscopy: Determination of Peroxide Value in Vegetable and Krill Oil by Using Triphenylphosphine as Tagging Reagent

机译：NMR光谱：使用三苯基膦作为标记试剂测定植物和磷油油中的过氧化物值

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Abstract > Hydroperoxides are formed as the primary product during lipid oxidation, being analyzed as the peroxide value to detect the degradation level of oils and fats. As an alternative to the classical titration method according to Wheeler, a 1 H‐{ 31 P} decoupled NMR method is developed using triphenylphosphine (TPP) as a tagging agent. TPP reacts with peroxides to form TPP oxides. The quantification of the peroxide value is performed by comparing the amount of reacted TPP oxide and non‐reacted TPP. This approach eliminates the requirement for an additional internal standard. Low‐oxidized oils (peroxide value ?3?meq/kg) and high‐oxidized oils with peroxide values of 150?meq/kg are precisely quantified with an relative standard deviation (RSD) of 4.90% and 0.16%, respectively. A total number of 108 oil samples are examined using the newly‐developed 1 H‐{ 31 P} decoupled NMR method, indicating the applicability for vegetable oils and krill oils. > Practical Applications : The developed NMR method is applicable for the determination of the peroxide value in vegetable, marine and krill oils presenting a powerful alternative for the Wheeler titration method. </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> > 在脂质氧化过程中形成氢过氧化物作为初级产物，被分析为过氧化物值以检测油和脂肪的降解水平。作为惠驾驶的典型滴定方法的替代方案，a 1 </ sup> H-{ 31 </ sup> P}去耦NMR方法是使用三苯基膦（TPP）作为标记剂开发的。 TPP与过氧化物反应形成TPP氧化物。通过比较反应的TPP氧化物和未反应的TPP的量来进行过氧化物值的定量。这种方法消除了额外的内标的要求。低氧化的油（过氧化物值＆ 3？meq-kg）和高氧化的油，其过氧化物值为150Ω·meq / kg，分别与4.90％和0.16％的相对标准偏差（RSD）精确定量。使用新开发的，检查108个油样品的总数 1 </ sup> H-{ 31 </ sup> P}去耦NMR方法，表明植物油和磷油油的适用性。 </ p> > 实际应用</ i> ：开发的NMR方法适用于测定蔬菜，海洋和磷虾油中的过氧化物值，呈现为轮车滴定法的强大替代品。 </ 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-23377/'>《European Journal of Lipid Science and Technology》</a> <b style="margin: 0 2px;">|</b><span>2020年第5期</span><b style="margin: 0 2px;">|</b><span>共11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=Hafer Elina&option=202" target="_blank" rel="nofollow">Hafer Elina;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Holzgrabe Ulrike&option=202" target="_blank" rel="nofollow">Holzgrabe Ulrike;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Wiedemann Sascha&option=202" target="_blank" rel="nofollow">Wiedemann Sascha;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Adams Kristie M.&option=202" target="_blank" rel="nofollow">Adams Kristie M.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Diehl Bernd&option=202" target="_blank" rel="nofollow">Diehl Bernd;</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>Institut für Pharmazie und LebensmittelchemieJulius‐Maximilians‐Universit?tWürzburg 97074 Germany;</p> <p>Institut für Pharmazie und LebensmittelchemieJulius‐Maximilians‐Universit?tWürzburg 97074 Germany;</p> <p>Emil‐Hoffmann‐Str. 33Spectral Service AGCologne 50996 Germany;</p> <p>704 Quince Orchard Rd.Steelyard Analytics Inc.Gaithersburg MD 20878 USA;</p> <p>Emil‐Hoffmann‐Str. 33Spectral Service AGCologne 50996 Germany;</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/8004.html" title="油脂工业产品及副产品">油脂工业产品及副产品;</a><a href="https://www.zhangqiaokeyan.com/clc/8042.html" title="食用油脂加工工业">食用油脂加工工业;</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=NMR spectroscopy methods&option=203" rel="nofollow">NMR spectroscopy methods;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=oxidation&option=203" rel="nofollow">oxidation;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=peroxides&option=203" rel="nofollow">peroxides;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=peroxide values&option=203" rel="nofollow">peroxide values;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=triphenylphosphine&option=203" rel="nofollow">triphenylphosphine;</a> </p> <div class="translation"> 机译：NMR光谱法;氧化;过氧化物;过氧化物值;三苯基膦; 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