Mayo Carlos Molina, Alayón Andrea Brito, García Rodríguez María Teresa, Jiménez Abizanda Ana Isabel, Moreno Francisco Jiménez
a Departamento de Química Analítica, Nutrición y Bromatología, Facultad de Química , Universidad de La Laguna (ULL) , Avenida Astrofísico Francisco Sánchez, s/n. 38201 La Laguna (Tenerife, Islas Canarias) , España.
Environ Technol. 2015 Jul-Aug;36(13-16):1933-42. doi: 10.1080/09593330.2015.1016121. Epub 2015 Mar 10.
This work proposes a green, simple and rapid chromatographic methodology for separation and determination of a group of 13 fatty acids methyl esters (FAMEs) by using a capillary gas chromatography with a flame ionization detector. The method was successfully applied for the determination of FAMEs in biodiesel samples from commercial and waste cooking oils, synthesized by homogeneous catalysis. Detection and quantification limits were in the μg L(-1) level. Direct injection of sample solution was compared with solid-phase extraction and solid-phase microextraction procedures, giving similar results. The lower analysis time represent considerable improvement compared with other papers. The described methodology is especially suitable for process control applications. The samples analysed showed total contents of FAMEs higher than 96.5%, which verifies the European regulations.
本研究提出了一种绿色、简便且快速的色谱方法，用于使用带有火焰离子化检测器的毛细管气相色谱法分离和测定一组13种脂肪酸甲酯（FAMEs）。该方法成功应用于测定通过均相催化合成的商业和废食用油生物柴油样品中的FAMEs。检测限和定量限处于μg L(-1)水平。将样品溶液直接进样与固相萃取和固相微萃取程序进行了比较，结果相似。与其他论文相比，较低的分析时间代表了显著的改进。所描述的方法特别适用于过程控制应用。分析的样品显示FAMEs的总含量高于96.5%，这符合欧洲法规。
