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Titolo:
ONLINE SULFUR-ISOTOPE DETERMINATION USING AN ELEMENTAL ANALYZER COUPLED TO A MASS-SPECTROMETER
Autore:
GIESEMANN A; JAGER HJ; NORMAN AL; KROUSE HP; BRAND WA;
Indirizzi:
FORSCHUNGSTANSTALT LANDWIRTSCHAFT,INST ECO TOXICOL,BUNDESALLEE 50 D-38116 BRAUNSCHWEIG GERMANY UNIV GIESSEN,INST PFLANZENOKOL D-35392 GIESSEN GERMANY UNIV CALGARY,DEPT PHYS CALGARY T2N 1N4 AB CANADA FINNIGAN MAT GMBH D-28197 BREMEN GERMANY
Titolo Testata:
Analytical chemistry
fascicolo: 18, volume: 66, anno: 1994,
pagine: 2816 - 2819
SICI:
0003-2700(1994)66:18<2816:OSDUAE>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
SULFATE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
13
Recensione:
Indirizzi per estratti:
Citazione:
A. Giesemann et al., "ONLINE SULFUR-ISOTOPE DETERMINATION USING AN ELEMENTAL ANALYZER COUPLED TO A MASS-SPECTROMETER", Analytical chemistry, 66(18), 1994, pp. 2816-2819

Abstract

An on-line method for S-isotope analysis is described. Samples are combusted in an elemental analyzer. SO2 is separated from other combustion gases by gas chromatography, and the gases enter the ion source of the mass spectrometer through a split interface. Integrated peak areasfor (SO2+)-S-32 and (SO2+)-S-34 are compared to the response for a standard gas sample to determine the delta(34)S value. delta(34)S valuesof samples analyzed using the on-line method correspond Linearly withthose achieved from the same sample prepared off-line, where Kiba reduction followed by oxidation of the sulfur to SO2 is carried out priorto S-isotope analysis against a known standard. With the described on-line method, the amount of sulfur necessary for S-isotope analysis isreduced to about 10 mu g of S per analysis. The time needed for on-line preparation and measurement is less than one-third of the off-line procedure.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 11/07/20 alle ore 04:31:06