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Modification of a commercially available thermospray interface and its use for the analysis of sulfonated azo dyes by liquid chromatography/mass spectrometry
Author(s) -
Groeppelin A.,
Linder M. W.,
Schellenberg K.,
Moser H.
Publication year - 1991
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/rcm.1290050413
Subject(s) - thermospray , chemistry , capillary action , chromatography , mass spectrometry , analytical chemistry (journal) , tandem mass spectrometry , composite material , materials science , selected reaction monitoring
A standard commercial thermospray interface was modified by replacing the stainless‐steel capillary by another stainless‐steel capillary with a larger internal diameter. A fused‐silica capillary was then placed within the whole length of the stainless‐steel capillary and connected to the liquid chromatograph. A thermospray interface modified in this way exhibits a more inner surface, resulting in an increased sensitivity for analysing sulfonated azo dyes. Analysis of sub‐microgram quantities is possible only with the modified interface.