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‘Underflow’ introduction system for solid and liquid samples in bench‐top gas chromatographic/mass spectrometric systems
Author(s) -
Favretto Donata,
Cecchinato Francesco,
Traldi Pietro,
March Raymond E.
Publication year - 1995
Publication title -
journal of mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 1076-5174
DOI - 10.1002/jms.1190300919
Subject(s) - chemistry , chromatography , arithmetic underflow , gas chromatography , inlet , transfer line , mass spectrometry , analytical chemistry (journal) , mechanical engineering , industrial engineering , computer science , engineering , programming language
A simple, inexpensive inlet system was developed for the introduction of liquid and solid samples, to be employed in commercial gas chromatographic/mass spectrometric instruments, and not requiring sample injection through the chromatographic column. The system does not need any modifications of the ion source housing and pumping system and is based on admitting the sample vapour as an underflow to the normal helium flow through the chromatographic column at a location near the transfer line.