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Solution-phase secondary-ion mass spectrometry of protonated amino acids

✍ Scribed by George R. Pettit; Gordon M. Cragg; Cedric W. Holzapfel; Albert A. Tuinman; Donald P. Gieschen

Publisher: Elsevier Science
Year: 1987
Tongue: English
Weight: 371 KB
Volume: 162
Category: Article
ISSN: 0003-2697
DOI: 10.1016/0003-2697(87)90032-7

No coin nor oath required. For personal study only.

✦ Synopsis

Although sulfolane proved unexpectedly to be a poor solvent for solution-phase secondary-ion mass spectrometry of underivatized amino acids in the presence of thallium(I) salts, glycerol was somewhat more effective. Also, the addition of trifluoromethanesulfonic acid proved more effective than addition of the metal in generating molecular ion complexes. A convenient and reliable method for rapidly determining amino acid molecular ions is based on these observations.

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