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Titolo:
Comprehensive two-dimensional gas chromatography via differential flow modulation
Autore:
Seeley, JV; Kramp, F; Hicks, CJ;
Indirizzi:
Oakland Univ, Dept Chem, Rochester, MI 48309 USA Oakland Univ Rochester MI USA 48309 v, Dept Chem, Rochester, MI 48309 USA
Titolo Testata:
ANALYTICAL CHEMISTRY
fascicolo: 18, volume: 72, anno: 2000,
pagine: 4346 - 4352
SICI:
0003-2700(20000915)72:18<4346:CTGCVD>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
LIQUID-CHROMATOGRAPHY; INSTRUMENTATION; SEPARATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Physical, Chemical & Earth Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Seeley, JV Oakland Univ, Dept Chem, Rochester, MI 48309 USA Oakland Univ Rochester MI USA 48309 m, Rochester, MI 48309 USA
Citazione:
J.V. Seeley et al., "Comprehensive two-dimensional gas chromatography via differential flow modulation", ANALYT CHEM, 72(18), 2000, pp. 4346-4352

Abstract

A novel comprehensive two-dimensional gas chromatograph has been developedthat utilizes differential non modulation. This technique uses a 6-port valve to collect effluent from a primary column and periodically inject the effluent into a secondary column. The flow in the secondary column is kept 20 times larger than the flow in the primary column so the contents of the sample loop can be flushed into the secondary column in 5% of the collectiontime. Peaks widths at half-maximum of approximately 0.06 s are generated for a 1.0 Hz secondary injection frequency. Sensitivity is not compromised, as 80% of the sample passes through both columns and reaches the detector. This simple yet effective technique has been used to analyze mixtures of alkanes, alkenes, aldehydes, alcohols, aromatics, esters, and ketones with high speed and high resolution.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/09/20 alle ore 23:39:03