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Digitale Medien

Massive cluster impact mass spectrometry: A new desorption method for the analysis of large biomolecules (1991)

Mahoney, J. F. ; Perel, J. ; Ruatta, S. A. ; [weitere]

New York, NY : Wiley-Blackwell

Rapid Communications in Mass Spectrometry 5 (1991), S. 441-445

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Details

ISSN: 0951-4198

Schlagwort(e): Chemistry ; Analytical Chemistry and Spectroscopy

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Physik

Notizen: A new ion desorption method is described that utilizes a primary beam of massive, multiply charged cluster ions to generate secondary ions of peptides in a glycerol matrix. The massive cluster ion beam is generated via electrohydrodynamic emission using a 1.5 M solution of ammonium acetate in 30% aqueous glycerol. Negaitve ion spectra of peptides obtained using this technique show greatly decreased relative intensities for fragment ions and ‘chemical noise’ background when compared to spectra obtained using a xenon atom primary beam. The near absence of fragmets derived from radiation damage to the sample solution is attributed to the impact of primary particles with energies less than 1 eV/nucleon.

Zusätzliches Material: 3 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/rcm.1290051004

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