Biodiesel Typification and Quality Control by Direct Infusion Electrospray Ionization Mass Spectrometry Fingerprinting
| Autor: | Marcos N. Eberlin, Janaína Marques Rodrigues Caixeiro, Rodinei Augusti, Manoel J. R. Guimarães, Vanderléa de Souza, Camila Martins Garcia, Rodrigo Ramos Catharino, Rosana C. L. Pereira, Humberto M. S. Milagre, Gilberto F. de Sá, Sérgio A. Saraiva, Ulf Schuchardt |
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| Rok vydání: | 2007 |
| Předmět: |
Biodiesel
food.ingredient Chromatography biology Chemistry General Chemical Engineering Sunflower oil Electrospray ionization food and beverages Energy Engineering and Power Technology biology.organism_classification Soybean oil Fuel Technology food Tallow Castor oil medicine Canola Jatropha curcas medicine.drug |
| Zdroj: | Energy & Fuels. 21:3698-3701 |
| ISSN: | 1520-5029 0887-0624 |
| DOI: | 10.1021/ef7003078 |
| Popis: | Direct infusion electrospray ionization mass spectrometry (ESI-MS) of aqueous/methanolic extracts of biodiesel samples is shown to permit simple and fast fingerprinting typification, identification of the alcohol used in the trans-esterification process, monitoring of degradation and adulteration, and screening of residual glycerin and mono-, di-, and tri-glycerides. As proof-of-principle cases, ESI-MS fingerprints in both the positive and the negative ion modes were acquired for biodiesel samples derived from soybean oil, sunflower oil, canola oil, olive oil, castor oil, jatropha curcas oil, palm oil, lard, and tallow. In the negative ion mode, characteristic sets of ions corresponding to de-protonated fatty acids were detected for each type of biodiesel, thus allowing their reliable typification via these taxonomic markers. Biodiesel degradation was also monitored by ESI(−)-MS with the detection of degradation markers, mainly oxidized fatty acids. When using ESI(+)-MS, the main diagnostic ions detected ... |
| Databáze: | OpenAIRE |
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