Laser mass spectra have been obtained for liquids under ambient conditions; the spectra are identical with those for the same compounds with the use of cold probe (~100 K). Liquids studied include benzene, toluene, benzyl alcohol, benzaldehyde, and acetic acid. Under the conditions employed, water, ethanol, methanol, and glycerol do not yield mass spectra. Laser mass spectra are compared with the electron-impact and chemical ionization spectra of the same compounds. Relative ion yields for benzene were studied as a function of laser irradiance. Two ion-formation regimes can be identified: low-power density and high-power density. Cluster ions were observed for many compounds, and the effect of postacceleration voltage on relative cluster-ion intensity is indicated.
John J. Morelli and David M. Hercules, "Laser Mass Spectra of Liquids Taken at Ambient Pressure," Appl. Spectrosc. 43, 1073-1081 (1989)
References are not available for this paper.
OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.