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Accurate mass measurements of organic compounds by an internal standard method for laser desorption/electron impact fourier transform mass spectrometry
Author(s) -
Jiang ChunGang,
Sheng LongSheng,
An DengKui
Publication year - 1991
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.1210260312
Subject(s) - mass spectrometry , analytical chemistry (journal) , fourier transform ion cyclotron resonance , chemistry , fourier transform , desorption , electron ionization , laser , chromatography , optics , physics , organic chemistry , ionization , ion , quantum mechanics , adsorption
Abstract A method for determining accurate relative molecular masses and elemental compositions of several non‐volatile and thermally labile organic compounds in the source cell was established. The experimental sequence included laser desorption/electron impact Fourier transform mass spectrometry and direct‐mode observation over a narrow mass range. Perfluorotributylamine was used as internal calibrant. Errors were about 1 ppm.