Forskning ved Københavns Universitet - Københavns Universitet

Forside

Molecular formula determination of halogenated compounds in environmental samples using gas chromatography and atomic emission dection

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt

Atomic emission spectroscopy coupled with capillary gas chromatography (GC) has been evaluated for molecular formula determination of several chlorinated and brominated compounds present in three environmental samples. Variations in elemental responses due to compound type, poor chromatographic resolution, and small signals relative to the background were all found to complicate molecular formula calculations. About 20% of the calculated molecular formulas presented in this paper agreed with theoretical values. For most applications, identifications based solely on GC coupled with theoretical values. For most applications, identifications based solely on GC coupled with atomic emission detection (AED) are not sufficiently accurate. However, the combination of elemental information derived form a GC‐AED analysis with complementary data obtained from other detection techniques results in a strong analytical tool for analyte identification.

OriginalsprogEngelsk
TidsskriftJournal of Microcolumn Separations
Vol/bind4
Udgave nummer2
Sider (fra-til)163-170
Antal sider8
ISSN1040-7685
DOI
StatusUdgivet - 1 jan. 1992

ID: 231656973