title: Matrix-assisted laser desorption ionization mass spectrometry of maltohexaose and acetylsalicylic acid using alkali metal cation-substituted zeolites.
abstract: Using alkali-metal cation-substituted zeolites and 2,4,6-trihydroxyacetophenone (THAP), which is a typical organic matrix molecule for matrix-assisted laser desorption ionization (MALDI), mass spectrometry has been performed for maltohexaose and acetylsalicylic acid, and the cation-selective ionization of these analytes was achieved. It is found that a complex of cation-substituted zeolite and THAP can be applicable to a compound that is hard to be ionized by a proton adduction in conventional MALDI.
authors.affiliation: Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, Japan.
authors.forename: Junya
authors.initials: J
authors.lastname: Suzuki
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Fujino
mesh_terms: D000098:Acetophenones / Q000737:chemistry; D001241:Aspirin / Q000032:analysis*; D002412:Cations / Q000737:chemistry; D008672:Metals, Alkali / Q000737:chemistry*; D009844:Oligosaccharides / Q000032:analysis*; D011522:Protons; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; D017641:Zeolites / Q000737:chemistry*
chemical_list: D000098:Acetophenones; D002412:Cations; D008672:Metals, Alkali; D009844:Oligosaccharides; D011522:Protons; D017641:Zeolites; C016549:maltohexaose; C107067:2,4,6-trihydroxyacetophenone; D001241:Aspirin