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High-temperature silylation in the production of inert glass capillary columns. From the first experiments to the chemical mechanism

✍ Scribed by Welsch, T.

Publisher
John Wiley and Sons
Year
1988
Tongue
English
Weight
899 KB
Volume
11
Category
Article
ISSN
0935-6304

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✦ Synopsis

This retrospective article describes the beginnings and the development of silylation methods with diverse silazanes and siloxanes at high temperatures, and stresses their role in producing modern capillary columns characterized by a high degree of thermostability and adsorptive and catalytic inertness. Particular emphasis i s placed on the outstanding contributions to this field of Kurt Grob, whose persilylation techniques provided the basis for the expansion of high resolution capillary gas chromatography.

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## Abstract Differently pretreated glass capillaries were coated with hydroxy‐terminated methyl or methyl‐phenyl polysiloxane gum phases and cured at 340–360°C for several hours. The volatile reaction products formed during the baking procedure were analyzed and the retention behavior of various po