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Issue 8, 2009
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Analysis of biodiesel and biodiesel–petrodiesel blends by high performance thin layer chromatography combined with easy ambient sonic-spray ionization mass spectrometry

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Abstract

High performance thin layer chromatography (HPTLC) combined with on-spot detection and characterization via easy ambient sonic-spray ionization mass spectrometry (EASI-MS) is applied to the analysis of biodiesel (B100) and biodiesel–petrodiesel blends (BX). HPTLC provides chromatographic resolution of major components whereas EASI-MS allows on-spot characterization performed directly on the HPTLC surface at ambient conditions. Constituents (M) are detected by EASI-MS in a one component–one ion fashion as either [M + Na]+ or [M + H]+. For both B100 and BX samples, typical profiles of fatty acid methyl esters (FAME) detected as [FAME + Na]+ ions allow biodiesel typification. The spectrum of the petrodiesel spot displays a homologous series of protonated alkyl pyridines which are characteristic for petrofuels (natural markers). The spectrum for residual or admixture oil spots is characterized by sodiated triglycerides [TAG + Na]+. The application of HPTLC to analyze B100 and BX samples and its combination with EASI-MS for on-spot characterization and quality control is demonstrated.

Graphical abstract: Analysis of biodiesel and biodiesel–petrodiesel blends by high performance thin layer chromatography combined with easy ambient sonic-spray ionization mass spectrometry

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Publication details

The article was received on 13 Oct 2008, accepted on 01 Jun 2009 and first published on 26 Jun 2009


Article type: Paper
DOI: 10.1039/B817847J
Analyst, 2009,134, 1652-1657

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    Analysis of biodiesel and biodiesel–petrodiesel blends by high performance thin layer chromatography combined with easy ambient sonic-spray ionization mass spectrometry

    L. S. Eberlin, P. V. Abdelnur, A. Passero, G. F. de Sa, R. J. Daroda, V. de Souza and M. N. Eberlin, Analyst, 2009, 134, 1652
    DOI: 10.1039/B817847J

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