Abstract

Plasma desorption mess spectrometry (PDMS) has been found to be an alternative mass spectrometric method for analyzing mixtures of metallogeoporphyrins. Carbon number distributions and recognition of both the ETIO and DPEP metallogeoporphyrin analogs are possible by obtaining PDMS spectra in the reflector mode, in which unit mess resolution can be achieved. Comparisons of the PDMS end isobutane chemical ionization mass spectre of a chromatographic fraction from an Anna shale oil are presented

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