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南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:

2004年04期

Page:

68-70

Research Field:

Publishing date:

Info

Title:

Making and Evaluating of Triethanol Amine Capillary Column for GC Used at High Temperatures

Author(s):

WU Xiuhong;  WANG Dongxin

School of Chemistry and Environmental Science, Nanjing Normal University, Nanjing 210097, China

Keywords:

triethanol amine;  so-l gel;  gas chromatography

PACS:

O657.71

DOI:

-

Abstract:

Triethanol amine can be used as stationary phase to make capillary columns for GC. As the stationary phase, the molecular weight of triehtanol amine is relatively small and the molecules are easy to evaporate at high temperatures, so the highest temperatures at which the column can be used is limited. In order to be used at high temperatures, the triethanol amine capillary column is made by using so-l gel method. The methyltrimethoxysilane is hydrolyzed and this reaction is followed by condensation, with the three- dimentional gel gradually formed. Triethanol amine and the silanols on the inner wall of the capi-l lary also take part in the condensation so that triethanol amine is actually bonded to the inner wall of the column. The testing result has shown that the maximum temperature at which the so-l gel column can be used is over twice as high as before.

References:

[ 1] 吉化公司研究院物化室色谱组, 顾蕙祥, 阎宝石. 气相色谱实用手册[M] . 第2 版. 北京: 化学工业出版社, 1990. 72.
[ 2] Rotzsche H. Stationary Phases in Gas Chromatography[M] . Amsterdam: Elsevier, 1991. 93.
[ 3] Wang D, Chong S L, Malik A. So-l Gel Column Technology for Single- Step Deactivation, Coating, and Stationary- Phase Immobilization in High-Resolution Capillary Gas Chromatography[ J] . Anal Chem, 1997, 69( 22) : 4566- 4576.
[ 4] 王东新, Malik A. 溶胶凝胶法制备用于分离极性有机化合物的毛细管气相色谱柱[ J] . 色谱, 2002, 20( 3) : 279- 282.
[ 5] 王东新. 新一代气相色谱柱) ) ) 溶胶凝胶毛细管柱 [ J] . 化学世界, 2003, 44( 5) : 266 -269, 273.

Memo

Memo:

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Last Update: 2013-04-29