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Titolo:
COUPLING OF REVERSED-PHASE LIQUID COLUMN CHROMATOGRAPHY AND FOURIER-TRANSFORM INFRARED SPECTROMETRY USING POSTCOLUMN ONLINE EXTRACTION AND SOLVENT ELIMINATION
Autore:
SOMSEN GW; HOOIJSCHUUR EWJ; GOOIJER C; BRINKMAN UAT; VELTHORST NH; VISSER T;
Indirizzi:
FREE UNIV AMSTERDAM,DEPT GEN & ANALYT CHEM,DE BOELELAAN 1083 1081 HV AMSTERDAM NETHERLANDS NATL INST PUBL HLTH & ENVIRONM PROTECT,LAB ORGAN ANALYT CHEM 3720 BA BILTHOVEN NETHERLANDS
Titolo Testata:
Analytical chemistry
fascicolo: 5, volume: 68, anno: 1996,
pagine: 746 - 752
SICI:
0003-2700(1996)68:5<746:CORLCC>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
CONCENTRIC FLOW NEBULIZATION; LC/FT-IR SPECTROMETRY; CELL INTERFACE; FT-IR; SYSTEMS; DESIGN;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
23
Recensione:
Indirizzi per estratti:
Citazione:
G.W. Somsen et al., "COUPLING OF REVERSED-PHASE LIQUID COLUMN CHROMATOGRAPHY AND FOURIER-TRANSFORM INFRARED SPECTROMETRY USING POSTCOLUMN ONLINE EXTRACTION AND SOLVENT ELIMINATION", Analytical chemistry, 68(5), 1996, pp. 746-752

Abstract

An on-line postcolumn extraction module was used in conjunction with a solvent elimination interface for the semi-on-line coupling of reversed-phase liquid chromatography (RP-LC) and Fourier transform infraredspectrometry (FT-IR). The extraction module consisted of a phase segmentor, an extraction coil, and a phase separator, Dichloromethane was used as extraction solvent. The organic phase delivered by the separator was evaporated by a spray-jet assembly that simultaneously deposited the extracted analytes onto a zinc selenide window, which was subsequently analyzed by FT-IR microscopy, The method is evaluated by studying parameters such as postcolumn band broadening, phase separation efficiency, evaporation efficiency, extraction yield, eluent composition,and use of nonvolatile buffer salts, Good-quality spectra were obtained for test compounds (phenylureas and quinones), which were separatedby RP-LC using a buffered eluent with high water content, Large-volume injections allowed FT-IR detection at the submicrogram per milliliter level.

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