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Titolo:
IDENTIFICATION OF HERBICIDES IN RIVER WATER USING ONLINE TRACE ENRICHMENT COMBINED WITH COLUMN LIQUID-CHROMATOGRAPHY FOURIER-TRANSFORM INFRARED SPECTROMETRY
Autore:
SOMSEN GW; JAGT I; GOOIJER C; VELTHORST NH; BRINKMAN UAT; VISSER T;
Indirizzi:
FREE UNIV AMSTERDAM,DEPT GEN & ANALYT CHEM,DE BOELELAAN 1083 NL-1081 HV AMSTERDAM NETHERLANDS NATL INST PUBL HLTH & ENVIRONM PROTECT,RIVM,LAB ORGAN ANAL CHEM NL-3720 BA BILTHOVEN NETHERLANDS
Titolo Testata:
Journal of chromatography
fascicolo: 1-2, volume: 756, anno: 1996,
pagine: 145 - 157
Fonte:
ISI
Lingua:
ENG
Soggetto:
CONCENTRIC FLOW NEBULIZATION; IR SPECTROMETRY; FT-IR; INTERFACE;
Keywords:
WATER ANALYSIS; ENVIRONMENTAL ANALYSIS; PESTICIDES; PHENYLUREAS; TRIAZINES; MONURON; CHLORTOLURON; DIURON; METOBROMURON; LINURON; CHLORBROMURON; SIMAZINE; ATRAZINE; SEBUTYLAZINE; PROPAZINE; TERBUTYLAZINE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
30
Recensione:
Indirizzi per estratti:
Citazione:
G.W. Somsen et al., "IDENTIFICATION OF HERBICIDES IN RIVER WATER USING ONLINE TRACE ENRICHMENT COMBINED WITH COLUMN LIQUID-CHROMATOGRAPHY FOURIER-TRANSFORM INFRARED SPECTROMETRY", Journal of chromatography, 756(1-2), 1996, pp. 145-157

Abstract

Trace enrichment of herbicides on a 10X2.0 mm I.D. precolumn packed with Polygosil C-18 material, was combined on-line with column liquid chromatography-Fourier-transform infrared spectrometry (LC-FT-IR). The isocratic LC separation was carried out on a 200X2.1 mm I.D Rosil C-18column using acetonitrile-phosphate buffer as eluent. The LC-FT-IR coupling was based on post-column on-line liquid-liquid extraction and solvent elimination, followed by FT-IR microscopy. The feasibility of the complete system was demonstrated by analysing river water spiked with triazines and phenylureas at the low-mu g/l level. Identifiable spectra were obtained for all analytes, which included several isomers. Using 50-100 ml water samples, the identification limit for the herbicides typically was 1 mu g/l. The usefulness of six spectral library search algorithms to correctly identify the recorded spectra was tested. A Peak-Search routine which is based on the matching of peak frequencies alone was found to be the most suitable to identify the analytes atthe trace level.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/12/20 alle ore 15:11:24