Characterization of chlorins within a natural chlorin mixture using electrospray/ion trap mass spectrometry |
| |
Authors: | Xavier Fr D Chillier Gary J Van Berkel Fazil O Gülaar Armand Buchs |
| |
Institution: | Xavier Fr. D. Chillier,Gary J. Van Berkel,Fazil O. Gülaçar,Armand Buchs |
| |
Abstract: | Chlorins in a sedimentary mixture were characterized, without prior isolation of individual components, using electrospray ionization combined with ion trap mass spectrometry. Collision-induced dissociation in the atmospheric sampling interface and multi-step mass spectrometry (i.e. MSn where n ? 2) were used in order to obtain structural information about the macrocycle. Fragmentation pathways are proposed for different macrocycle types based on data from model chlorins. Three unknown chlorins (RMM = 888, 844 and 790) are assigned as having bacteriochlorophyll macrocycle types esterifled to unusual side-chains (i.e. dihydrophytol for the unknown with a bacteriopheophorbide a structure, phytol and an alcohol with a molecular mass of 242 u for the two unknowns with a proposed bacteriopyropheophorbide d structure). |
| |
Keywords: | |
|
|