GAS-CHROMATOGRAPHIC RETENTION PROPERTIES OF ORGANOAMMONIUM EXCHANGED MONTMORILLONITES .2. CH3N+H3, (CH3)4N+, (CH3)3N+CH2C6H5 AND 1,4-DIAZABICYCLO[2.2.2]OCTANE. 2H+

被引:4
|
作者
LARA, AS
EICEMAN, GA
机构
[1] Department of Chemistry, New Mexico State University, Las Cruces
来源
JOURNAL OF CHROMATOGRAPHY | 1991年 / 549卷 / 1-2期
基金
美国国家科学基金会;
关键词
D O I
10.1016/S0021-9673(00)91440-7
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The gas chromatographic retention properties of four organoammonium tailored montmorillonites were characterized using 68 probe molecules. The retention patterns favored a steric model in which retention was governed by three parameters: adsorbate dimensions and orientation, interlamellar plate separation distance, and inter-cation volumes in the interlamellar region. Tailored montmorillonites are limited in steric selectivity at large interlamellar plate distances by swelling and acceptance of oversized molecules.
引用
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页码:283 / 295
页数:13
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