Application of TLC-MALDI-TOFMS to Identification of Co(II) and Co(III) Acetylacetonates.

Abstract

The mass spectra of Co(II) acetylacetonate and Co(III) acetylacetonate were measured by MALDI-TOF-MS. Complex peaks, such as the adduct peaks and cluster peaks, were observed in their mass spectra. The two compounds had di#erent mass spectra. The compounds could be identified by their mass spectra. TLC-MALDI-TOFMS was applied to a mixture of these compounds. The separated spots on the TLC plate gave similar mass spectra to that of the conventional MALDI-TOFMS, when a mixture of solvents with acetylacetone was used as the developing and eluting solvents.