Narrow-bore wall-coated open-tubular columns for fast high-resolution gas chromatographic separations of toxicants of environmental concern

Onuska, Francis I.

doi:10.1016/s0021-9673(00)95089-1

Cited by 27 publications

(6 citation statements)

References 22 publications

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“…In the chromatographic literature, a limited number of publications have been published dealing with the subject of on-column injection techniques in combination with narrow-bore columns. In 1984, Onuska demonstrated the advantages of the use of narrow-bore columns for environmental analysis [11]. He performed direct sample introduction into narrow-bore columns by coupling a wider bore fusedsilica retention gap to the 100 lm i. d. and 25 m long separation column.…”

Section: Introductionmentioning

confidence: 99%

Large Volume Injection in Fast Gas Chromatography with On-Column Injector

Korytár

Matisová

Lefflerová

et al. 2000

J. High Resol. Chromatogr.

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Section: Introductionmentioning

confidence: 99%

Large Volume Injection in Fast Gas Chromatography with On-Column Injector

Korytár

Matisová

Lefflerová

et al. 2000

J. High Resol. Chromatogr.

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“…In this way, a small fraction of the sample was transferred to the column, while the majority of the sample was vented via the split outlet. In 1984, Onuska demonstrated the advantages of the use of narrow-bore columns for environmental analysis of PCBs, toxaphene and tetrachlorodibenzo-dioxins [19]. Sample introduction was performed in the splitless or in the on-column mode.…”

Section: Introductionmentioning

confidence: 99%

The Use of Non-Splitting Injection Techniques for Trace Analysis in Narrow-Bore Capillary Gas Chromatography

Ysacker

Snijders

Janssen

et al. 1998

J. High Resol. Chromatogr.

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“…The number of theoretically possible chlorobornane congeners is 32768, including a large number of enantiomeric pairs [6]. In practice, several hundred components have been separated by chromatographic techniques [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

A congener-specific method for the quantification of camphechlor (toxaphene) residues in fish and other foodstuffs

Alder

Vieth

1996

Fresenius' Journal of Analytical Chemistry

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To develop a method for the quantification of camphechlor without the use of complex technical toxaphene as gas-chromatographic standard, all important chlorobornane peaks have been identified in a mixed marine fish sample reflecting the fish consumption in Germany. Further ECD but not ECNI-MS has been found to be suitable for estimation of the relative concentrations of chlorobornanes. The three camphechlor congeners with the highest ECD response have been found in concentrations of 0.05-0.08 mg/kg (fat basis), representing about 50% of the total chlorobornanes present. A predominance of these congeners has also been observed in a standard reference material of cod liver oil (SRM 1588). As these three congeners are presumed to be dominant in human camphechlor intake, it is proposed to use them as indicator components for a congener-specific analysis of camphechlor residues together with a fourth heptachlorobornane which does not accumulate in fish. Cleanup by gel permeation and silica gel chromatography with GC/ECD analysis has been tested for its suitability to determine these camphechlor congeners. The limit of determination found for each congener was about 5 g/kg. The determination of these four congeners allows an unambiguous identification without specific cleanup (e.g. complete separation from PCBs or chlordanes) and a simple quantification of camphechlor residues, thus eliminating systematic errors resulting from different technical standards or detectors.

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Narrow-bore wall-coated open-tubular columns for fast high-resolution gas chromatographic separations of toxicants of environmental concern

Cited by 27 publications

References 22 publications

Large Volume Injection in Fast Gas Chromatography with On-Column Injector

Large Volume Injection in Fast Gas Chromatography with On-Column Injector

The Use of Non-Splitting Injection Techniques for Trace Analysis in Narrow-Bore Capillary Gas Chromatography

A congener-specific method for the quantification of camphechlor (toxaphene) residues in fish and other foodstuffs

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