ANALYSIS OF HYDROCARBON LIQUID AND SOLID SAMPLES

摘要

A method is provided for analysis and/or profiling of petroleum samples. The method allows for compositional analysis of samples using desorption electrospray ionization for generating ions for detection by mass spectroscopy. Desorption electrospray ionization can be used to generate ions for detection from a liquid or solid petroleum (or other hydrocarbon) sample by dropping a solvent typically comprising toluene and acetonitrile onto a sample surface. For solid samples, the technique can also be used to identify changes in composition of a petroleum sample relative to a dimension of the solid sample.