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Titolo:
ONLINE SOLID-PHASE EXTRACTION GAS-CHROMATOGRAPHY CRYOTRAPPING INFRARED SPECTROMETRY FOR THE TRACE-LEVEL DETERMINATION OF MICROCONTAMINANTS IN AQUEOUS SAMPLES
Autore:
HANKEMEIER T; HOOIJSCHUUR E; VREULS RJJ; BRINKMAN UAT; VISSER T;
Indirizzi:
TNO,INST NUTR & FOOD RES,DIV ANALYT SCI,UTRECHTSEWEG 48 NL-3704 HE ZEIST NETHERLANDS FREE UNIV AMSTERDAM,DEPT ANALYT CHEM NL-1081 HV AMSTERDAM NETHERLANDS NATL INST PUBL HLTH & ENVIRONM PROTECT,LAB ORGAN ANALYT CHEM NL-3720 BA BILTHOVEN NETHERLANDS
Titolo Testata:
HRC. Journal of high resolution chromatography
fascicolo: 6, volume: 21, anno: 1998,
pagine: 341 - 346
SICI:
0935-6304(1998)21:6<341:OSEGCI>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
OPEN-SPLIT INTERFACE; MASS-SPECTROMETRY; INJECTIONS; COLUMNS;
Keywords:
LARGE-VOLUME ON-COLUMN INJECTION; GAS CHROMATOGRAPHY; INFRARED SPECTROMETRY; MICROCONTAMINANTS; SOLID-PHASE EXTRACTION; OPEN-SPLIT INTERFACE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
20
Recensione:
Indirizzi per estratti:
Citazione:
T. Hankemeier et al., "ONLINE SOLID-PHASE EXTRACTION GAS-CHROMATOGRAPHY CRYOTRAPPING INFRARED SPECTROMETRY FOR THE TRACE-LEVEL DETERMINATION OF MICROCONTAMINANTS IN AQUEOUS SAMPLES", HRC. Journal of high resolution chromatography, 21(6), 1998, pp. 341-346

Abstract

A large-volume on-column GC-cryotrapping-m system was developed for injections of up to 100 mu l of organic extracts. Considerable reduction of the solvent-and-water background and enhanced analyte detectability was achieved by using an open-split interface between the GC columnand the IR detector and improving the leak-tightness of the system. The system was combined,vith solid-phase extraction to yield on-line SPE-GC-IR. With this set-up, sample volumes of only 20 ml sufficed to detect, and identify, microcontaminants in tap and surface water at the 0.1-1 mu g/L level. Detection limits were on the order of 15 ng/L for tap water when using appropriate functional-group chromatograms. Or, in other words, SPE-GC-IR is a suitable technique for the screening of environmental water samples for functional groups, i.e. classes of compounds, of interest.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/11/20 alle ore 06:50:54