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首页> 外文期刊>島津評論 >Analysis of Methyl Laurate Content in Low Concentration Biodiesel Blends (B1, B2) with Multidimensional Gas Chromatography System
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Analysis of Methyl Laurate Content in Low Concentration Biodiesel Blends (B1, B2) with Multidimensional Gas Chromatography System

机译：多维气相色谱系统分析低浓度生物柴油混合物（B1，B2）中的月桂酸甲酯含量

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摘要

Direct determination of methyl laurate (C12ME) in low concentration biodiesel blends such as B1, B2, was carried out using a dual oven multidimensional gas chromatography (MDGC) system without the need for any tedious sample preparation process. The biodiesel blend was first introduced through a non-polar column which initiates its primary separation. The unseparated target analyte, C12ME was then selectively heart cut and was introduced for a 2nd dimension separation through a polar column that has independent operating temperature programs via the 2nd column oven. The remaining non-targeted high boiling components in the non-polar column were subsequently back flushed and were purged out at high oven temperature setting of the 1st column oven. Accurate and precise qualitative and quantitative data were also shown by the middle bore capillary MDGC approach. Fast MDGC method utilizing narrow bore capillary columns was also investigated for this application.
机译：使用双炉多维气相色谱（MDGC）系统直接测定低浓度生物柴油混合物（例如B1，​​B2）中的月桂酸甲酯（C12ME），而无需任何繁琐的样品制备过程。首先将生物柴油混合物通过非极性色谱柱引入，从而启动其初步分离。然后将未分离的目标分析物C12ME进行心脏切碎，并通过具有独立操作温度程序的极柱通过第二柱烘箱引入二维分离。随后将非极性色谱柱中剩余的非目标高沸点组分反冲洗，并在第一色谱柱柱箱的较高柱箱温度下吹扫。中孔毛细管MDGC方法还显示了准确，准确的定性和定量数据。对于此应用，还研究了使用窄口毛细管柱的快速MDGC方法。

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