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Crown ether substituted polysiloxanes as stationary phases for open tubular column gas chromatography

✍ Scribed by Jilong Ge; Ruonong Fu; Aiqin Zhang; Rongping Zhu; Jinghui Deng; Junling Gu; Jiya Zhu; Zaifu Huang; Bin Zhang

Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
373 KB
Volume
3
Category
Article
ISSN
1040-7685

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✦ Synopsis

Abstract

Two new crown ether substituted polysiloxanes, 4‐propylbenzo‐15‐crown‐5polysiloxane(PSO‐B‐15C5) and propyloxydibenzo‐14‐crown‐4polysiloxane (PSO‐DB‐14C4), were prepared and used as stationary phases coated on fused‐silica open tubular columns. The chromatographic characteristics, including column efficiency, polarity, phase transition temperature, allowable operating temperature range and selectivity, were studied. A unique selectivity of these columns was found for the separation of all six dimethylphenol isomers. The separation mechanism is discussed.

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