Concentration of volatile organics in aqueous solutions on uncoated capillary columns and their thermal desorption

Quantitative analysis of trace organics in aqueous samples (up to 100 ml) was carried out by a novel technique. Organics were concentrated by passage of the aqueous sample through an uncoated hydrophobic trapping capillary. Trapped organics were desorbed thermally from the capillary and collected in...

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Veröffentlicht in:	Chromatographia 1990-06, Vol.29 (11-12), p.523-529
Hauptverfasser:	ZLATKIS, A, RANATUNGA, R. P. J, MIDDLEDITCH, B. S
Format:	Artikel
Sprache:	eng
Schlagworte:	Analytical chemistry Chemistry Chromatographic methods and physical methods associated with chromatography Exact sciences and technology Gas chromatographic methods
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Beschreibung
Zusammenfassung:	Quantitative analysis of trace organics in aqueous samples (up to 100 ml) was carried out by a novel technique. Organics were concentrated by passage of the aqueous sample through an uncoated hydrophobic trapping capillary. Trapped organics were desorbed thermally from the capillary and collected in a cold trap for subsequent gas chromatographic analysis. Co-eluted water vapour was selectively removed using a membrane dryer. A flame ionization detector (FID) was used for ppt level analysis.
ISSN:	0009-5893 1612-1112
DOI:	10.1007/BF02261216