On-column concentration of trace high-boiling compounds for quantitative gas chromatographic analysis

Jahnsen, V. J.

doi:10.1021/ac60245a036

Cited by 4 publications

References 1 publication

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Solvent removal/thermal desorption (SRTD) for extract concentration and capillary column injection

Hart¹,

Pankow²

1987

J. High Resol. Chromatogr.

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SummaryMany solvent extracts must be concentrated prior to analysis. Both Kuderna-Danish (K-D) concentration and inert gas blowdown are commonly used. Significant losses often occur with the latter. Solvent removaVthermal desorption (SRTD) on a precolumn was investigated here as an alternative or supplement to these methods. The compounds studied included polychlorinated biphenyls (PCBs) and polybrominated biphenyls (PBBs).SRTD wascarriedout by injecting 100pLofextractintoa cartridge-type precolumn, selectively volatilizing the solvent with a stream of carrier gas, then thermally desorbing the analytes to a fused silica capillary gas chromatography (GC) column. The mean total recoveries and mean standard errors obtained were 109 and t 12%, respectively. SRTD was found to give sharper peaks than were obtainable with on-column injection. Method detection limits accessible for PCBs by capillary GC with electron impact mass spectrometry with the assistance of SRTD were estimated. Overall, SRTD was found to be an effective, rapid, high recovery concentration method for solvent extracts.

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Solvent removal/thermal desorption (SRTD) for extract concentration and capillary column injection

Hart¹,

Pankow²

1987

J. High Resol. Chromatogr.

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Glass capillary columns and their significance in biochemical research

Novotný

Zlatkis

1971

Chromatographic Reviews

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A simple method for concentrating dilute high-boiling samples for capillary gas chromatography

Novotný

Farlow

1975

Journal of Chromatography A

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On-column concentration of trace high-boiling compounds for quantitative gas chromatographic analysis

Abstract: The gas chromatographic analysis of trace amounts of steroids, drugs, and other compounds of clinical or industrial interest has previously presented a problem because of the dilute form in which the samples are obtained for analysis.

Cited by 4 publications

References 1 publication

Solvent removal/thermal desorption (SRTD) for extract concentration and capillary column injection

Solvent removal/thermal desorption (SRTD) for extract concentration and capillary column injection

Glass capillary columns and their significance in biochemical research

A simple method for concentrating dilute high-boiling samples for capillary gas chromatography

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