Time-of-flight secondary ion mass spectrometry of matrix-diluted oligo- and polypeptides bombarded with slow and fast projectiles : positive and negative matrix and analyte ion yields, background signals, and sample aging
von K. Wittmaack ; W. Szymczak ; Gerald Hoheisel ; Wilfried Tuszynski
Desorption '98, Mass Spectrometry of Large Organic Ions by Electrospray, Particle and Photon Induced Desorption, Rio de Janeiro, Brazil, September 21 - 26, 1998