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Secondary ion mass spectrometery: A new analytical technique for biologically important compounds
Author(s) -
Benninghoven A.,
Sichtermann W.
Publication year - 1977
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210120914
Subject(s) - ion , chemistry , mass spectrometry , mass spectrum , analytical chemistry (journal) , secondary ion mass spectrometry , chromatography , organic chemistry
Abstract The secondary ion emission of about 40 biologically important compounds including amino acids, peptides, drugs, vitamins, pharmaceuticals, etc. has been determined by static secondary ion mass spectrometry. Unexpected ‘parent‐like’ secondary ions such as [M + H]+ and [M − H]−, as well as fragment ions, correlated with functional groups, are emitted with relatively high absolute yields. The secondary ion mass spectra allow an unambiguous identification of all samples with detection limits in the 10 −12 g range.