Abstract: FABMS Study of Tetra-phenyl Substitutde PorphyrinsBao Yanchu; Jiang Yanhao; Zhao Taonan; Yang Jihong(Center of Modern Analysis, Nanjing University, Nanjing 210093,China)Xu Zhen(Coordination Chemistry Instiute, Nanjing University)Abstract: From the FABMS study of a series of tetra-phenyl substituted porphyrin compounds, it was found that when certain kind of sulfoxides was used as matrix, the molecular ion peaks would apparently appear on spectra,and that when nitro-benzyl alcohol was used as matrix,the satistactory results would obtain for metal complex of the substituted porphyrins. The mechanism of the action between matrix and these compounds was preliminary discussed in this paper.Keywords: FABMS; thioglycerine; M-nitrobenzyl alchol; sulfoxides; porphyrin