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首页> 外文期刊>Fuel >Determination of the iodine value of biodiesel using ~1H NMR with 1,4-dioxane as an internal standard
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Determination of the iodine value of biodiesel using ~1H NMR with 1,4-dioxane as an internal standard

机译:以〜1,4-二恶烷为内标〜1H NMR测定生物柴油的碘值

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摘要

Iodine values (IVs) of some biodiesel samples were analyzed using both 'H NMR and a standard iodomet-ric method. 'H NMR was carried out with and without 1,4-dioxane as an internal standard (IS). The results obtained using 1H NMR with 1,4-dioxane as an internal standard showed better linear fitting and correlation with the iodometric method than NMR without the IS. The proposed 'H NMRJS method allows determination of the IV using smaller samples than the iodometric method. Moreover, the determination can be carried out in less than 15 min, dramatically less than the time needed to carry out the iodometric method.
机译:使用1 H NMR和标准碘量分析方法对某些生物柴油样品的碘值(IVs)进行了分析。 1 H NMR在有和没有1,4-二恶烷作为内标(IS)的条件下进行。使用1H-NMR和1,4-二恶烷作为内标所获得的结果显示,与不使用IS的NMR相比,用碘量法进行线性拟合和相关性更好。提议的1 H NMRJS方法允许使用比碘量法小的样品测定IV。而且,测定可以在不到15分钟的时间内完成,大大少于执行碘量法所需的时间。

著录项

  • 来源
    《Fuel》 |2010年第11期|P.3489-3492|共4页
  • 作者单位

    Chemistry Department, University of Ueida, 25198-Lleida, Spain;

    rnChemistry Department, University of Ueida, 25198-Lleida, Spain;

    rnChemistry Department, University of Ueida, 25198-Lleida, Spain;

    rnChemistry Department, University of Ueida, 25198-Lleida, Spain;

    rnFood Technology Department, UTpV-Certa, University of Lieida, Spain;

    rnChemistry Department, University of Ueida, 25198-Lleida, Spain;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    biodiesel; iodine value; ~1H NMR spectroscopy; internal standard;

    机译:生物柴油碘值〜1H NMR光谱;内部标准;

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