Intact triacylglycerol profiles of fats and meats via thermal imprinting easy ambient sonic-spray ionization mass spectrometry

• Grant number: 12/22059-4
• Support Opportunities: Regular Research Grants - Publications - Scientific article
• Start date: December 01, 2012
• End date: May 31, 2013
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal Investigator: Marcos Nogueira Eberlin
• Grantee: Marcos Nogueira Eberlin
• Host Institution: Instituto de Química (IQ). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil

Abstract

Thermal imprinting (TI) on a paper surface, using minimal solvent amounts, followed by direct analysisof the triacylglycerols (TAG) content via easy ambient sonic-spray ionization mass spectrometry(EASI-MS) is shown to provide a fast protocol to analyze TAG in meats and fats. The technique issimple, fast and eco-friendly requiring no hydrolysis, derivatization or chromatographic separation.The entire TI-EASI-MS protocol is performed in a few minutes and with minimal sample handling andsolvent consumption. The TAG profiles obtained via TI-EASI-MS are shown to be quite similar tothose obtained using GC and MALDI-MS analyses, and the imprinting and mailing of the imprintedpaper in a sealed plastic bag is proposed for remote TI-EASI-MS analysis of meat and fat samples. (AU)