Modulation techniques and applications in comprehensive two-dimensional gas chromatography (GC x GC).
Anal Bioanal Chem
; 373(6): 356-67, 2002 Jul.
Article
em En
| MEDLINE
| ID: mdl-12172670
ABSTRACT
More than a decade after Phillips' first published work this article reviews recent developments in comprehensive two-dimensional gas chromatography (GC x GC). Special attention is devoted to the further development and diversity of modulation devices. These include heated sweepers, cryofocused modulators, and a variety of diaphragm valve-switching strategies. It is demonstrated that all modulation approaches can be very well suited to GC x GC, depending on the particular application. Diaphragm-valve modulation is very powerful for volatile organic compounds. Slotted heater and cryofocused modulation are preferred for samples that contain non-volatile components. Applications ranging from petroleum to environmental and biological samples are illustrated. Extension of the technique to GC x GC-mass spectrometry (MS) is also discussed and trends for future research activity are pointed out.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Cromatografia Gasosa
Tipo de estudo:
Diagnostic_studies
Idioma:
En
Revista:
Anal Bioanal Chem
Ano de publicação:
2002
Tipo de documento:
Article