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Deactivation of fused silica capillary columns with phenylhydrosiloxanes

✍ Scribed by Markides, K. E. ;Tarbet, B. J. ;Woolley, C. L. ;Schregenberger, C. M. ;Bradshaw, J. S. ;Lee, M. L. ;Bartle, K. D.

Publisher: John Wiley and Sons
Year: 1985
Tongue: English
Weight: 587 KB
Volume: 8
Category: Article
ISSN: 0935-6304
DOI: 10.1002/jhrc.1240080803

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✦ Synopsis

Abstract

In this work, an investigation of new organosilicon hydride reagents with phenyl functional groups for deactivation and surface modification of fused silica capillary columns is described. Different reagents were tested for their ability to deactivate the fused silica surface, and actual critical surface tension measurements were made using the capillary rise method. The deactivation procedure required lower optimum temperatures than conventional methods. Deactivated capillaries and coated capillary columns were prepared and tested for reproducibility, efficiency, and surface inertness towards basic and acidic compounds at the low nanogram level.

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