Desorption Ionization of Biomolecules on Metals | Zendy

NienYeen Hsu | Zendy; Susan Y. Tseng | Zendy; ChungYi Wu | Zendy; ChienTai Ren | Zendy; YuanChang Lee | Zendy; ChiHuey Wong | Zendy; ChungHsuan Chen | Zendy

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Desorption Ionization of Biomolecules on Metals

Author(s) -

NienYeen Hsu,

Susan Y. Tseng,

ChungYi Wu,

ChienTai Ren,

YuanChang Lee,

ChiHuey Wong,

ChungHsuan Chen

Publication year - 2008

Publication title -

analytical chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.117

H-Index - 332

eISSN - 1520-6882

pISSN - 0003-2700

DOI - 10.1021/ac800435r

Subject(s) - chemistry , biomolecule , ionization , mass spectrometry , thermal ionization , soft laser desorption , desorption , ambient ionization , chemical ionization , analytical chemistry (journal) , ion source , mass spectrum , silicon , ion , matrix assisted laser desorption/ionization , chromatography , electron ionization , adsorption , organic chemistry , biochemistry

Direct desorption ionization of various types of biomolecules on metal substrates without the need of matrices was observed by a time-of-flight mass spectrometer. It provides a new convenient method for detection of small biomolecules without the confusion of ion peaks from matrix compounds. Simple commercial Al foil can be used as the substrate to obtain mass spectra of biomolecules without the need of an etching process to produce a porous surface such as with direct ionization on silicon (DIOS). The desorption and ionization mechanism is also discussed.

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