Synthesis and characterization of benzyl β-cyclodextrins used as GC stationary phases |
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Authors: | D. Q. Xiao B. Q. Che R. N. Fu J. L. Gu Y. X. Wen Y. Ling H. B. Zhang |
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Affiliation: | (1) Department of Chemical Engineering, Beijing Institute of Technology, 100081 Beijing, P. R. China |
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Abstract: | Summary Heptakis(2,6-di-O-benzyl)-β-CD(I), heptakis(2,6-di-O-benzyl-3-O-pentyl)-β-CD(II), heptakis(2,6-di-O-benzyl-3-O-methyl)-β-CD(III) and heptakis(2,6-di-O-benzyl-3-O-acetyl)-β-CD(IV) derivatives were synthesized and identified. Their thermal stabilities were tested using PyGC. These CD derivatives are stable up to 300°C and suitable for use as gas chromatographic stationary phases. The fused silica capillary columns coated with heptakis(2,6-di-O-benzyl-3-O-methyl)-β-CD and heptakis(2,6-di-O-benzyl-3-O-pentyl)-β-CD showed excellent chromatographic properties in separating positional isomers. |
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Keywords: | Gas chromatography Stationary phases Isomer separation |
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