@article{oai:kansai-u.repo.nii.ac.jp:00011444,
 author = {Okuno, Shoji and Oka, Kunihiko and Arakawa, Ryuichi},
 journal = {Analytical Sciences},
 month = {Dec},
 note = {In matrix-assisted laser desorption/ionization(MALDI),the true molecular structures of some analytes are not represented by the observed ions due to a redox reaction.In earlier reports,electron transfer from analyte to chemical matrix has been proposed for the oxidation of ferrocene derivatives in MALDI.To address such a redox phenomenon in laser desorption/ionization processes,two ferrocene derivatives,FcCH2CH2Fc and FcCH2NMe2[Fc:(C5H5)Fe(C5H4)],were analyzed by a matrix-free method,desorption/ionization on porous silicon(DIOS). The oxidized species,Fc+CH2NMe2 and FcCH2CH2Fc+,were detected in the DIOS mass spectra.The results suggested that electron transfer from the analytes to the sample target occurs during the ionization process.},
 pages = {1449--1451},
 title = {Oxidation of Ferrocene Derivatives in Desorption/Ionization on Porous Silicon},
 volume = {21},
 year = {2005}
}