| 摘要 |
Apparatus, device, and methods for fragmenting high molecular weight molecular ions, such as peptides or proteins, by treating the ions with predetermined wavelengths of light are described. Vacuum ultraviolet radiation as a source of predetermined wavelengths of laser light is described in one embodiment. A device ( 50 ) is described having a sample, such as a peptide, protein, protein digest, and the like enters through inlet ( 55 ) and is irradiated with a first source of light ( 60 ), which illustratively may be a laser light. The first source of laser light is illustratively at a wavelength and energy sufficient to convert molecules in the sample into molecular or precursor ions.
|
