✦ LIBER ✦

Increased thermostability of non-polar wall-coated open tubular columns

✍ Scribed by Houtermans, W. J. M. ;Boodt, C. P.

Publisher: John Wiley and Sons
Year: 1979
Tongue: English
Weight: 202 KB
Volume: 2
Category: Article
ISSN: 0935-6304
DOI: 10.1002/jhrc.1240020512

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✦ Synopsis

Abstract

A method of deactivating the inner surface of glass capillary columns is described, which can be used at 350°C without detoriation. A non‐polar liquid phase was prepared from a commercially available liquid phase which, when coated on a glass surface, can withstand temperatures of 325°C for isothermal analysis and 350°C for temperature‐programmed analysis.

After deactivation, the column was coated using the static coating method. Then it was conditioned, tested and kept for 48 hours at 35O°C before being used for the analysis of a mixture of chlorinated pesticides.

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