Preparation, evaluation, and comparison of wide bore (320 μm) and narrow bore (50 μm) cyanosilicone‐coated capillary columns for gas chromatography
作者:
A. Aerts,
J. Rijks,
A. Bemgard,
L. Blomberg,
期刊:
Journal of High Resolution Chromatography
(WILEY Available online 1986)
卷期:
Volume 9,
issue 1
页码: 49-56
ISSN:0935-6304
年代: 1986
DOI:10.1002/jhrc.1240090109
出版商: Wiley Subscription Services, Inc., A Wiley Company
关键词: Gas chromatography, GC;Fused silica capillary, columns;Wide and narrow bore;Cyanosilicone coatings
数据来源: WILEY
摘要:
AbstractThe preparation of wide bore (320 μm) and narrow bore (50 μm) fused silica capillary columns is described for immobilized cyanopropyl substituted silicones containing 60 and 88% substitution. The effect of high temperature deactivation with cyanopropylcyclosiloxanes was studied with a special test mixture. Curing was achieved with dicumyl peroxide or azo‐tert‐butane.The columns were evaluated and compared in terms of efficiency, activity, polarity, and temperature stability. Different coating methods were compared for the narrow bore columns. The activity of the 60% cyanopropyl columns that had been immobilized with dicumyl peroxide was significantly larger than for azo‐tert‐butane immobilized columns. The polarity of polar columns appeared to depend greatly on column temperature and is completely different for wide and narrow bor
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