## Abstract Conditions were optimized for the introduction of large volumes of drinking water by splitless injection with vapor overflow, experimenting with the determination of triazines. No co‐solvent was added, and the maximum injection volume was 400 μl. A vapor outlet beyond a coated precolumn
Splitless injection of large volumes of aqueous samples - A basic feasibility study
✍ Scribed by Grob, Konrad ;Fröhlich, Dieter
- Book ID
- 102894993
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 502 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0935-6304
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✦ Synopsis
Abstract
Experiments with splitless injection of large volumes of aqueous samples by the overflow technique have shown that an organic co‐solvent is necessary to help the packing material (Tenax) retain the liquid. With 25–30% propanol or 15–20% 2‐butoxyethanol, some 800 μl can be injected into a 5 mm i.d. liner. The application of the method is restricted to components eluting above ca 200 °C.
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## Abstract A new approach to the introduction of large aqueous samples into a gas chromatograph, solid phase extraction ‐ thermal desorption, is presented. Carrier gas pushes the sample through a packed liner mounted in a programmed temperature vaporizer; analytes retained by the packing material
Evaluation of split/splitless operation and rapid heating of a multi-bed sorption trap used for gas chromatography analysis of large-volume air samples The effects of split-flow operation and rapid trap heating on injection-plug widths from an electrically heated, microscale, multibed sorption trap