Mass spectra of substances ionized by fission fragment induced desorption

Abstract

Abstract The mass spectra of substances of physiological and pharmaceutical interest such as steroids, alkaloids, sugars, glycosides and similar, obtained by fission fragment induced desorption as first applied by Macfarlane are presented. The behaviour of organic and inorganic salts is also discussed, including that of mixtures of salts and organic substances. Comparison is made with field desorption data, where available, and electron impact data for those substances of sufficient volatility.