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Modification of glass capillary gas chromatographic columns by alkylation of the glass surface with pentafluorobenzyl bromide |
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| Authors: | I. Kari A. Huhtikangas J. Gynther T. Vartiainen R. Hiltunen |
| Affiliation: | (1) Department of Pharmacy, University of Kuopio, P.O.B. 138, 70101 Kuopio 10, Finland;(2) Department of Chemistry, University of Kuopio, P.O.B. 138, 70101 Kuopio 10, Finland;(3) Department of Pharmacognosy, University of Helsinki, 00170 Helsinki 17, Finland |
| Abstract: | Summary Glass surface alkylation with pentafluorobenzyl (PFB) bromide yields glass capillary gas chromatographic columns with modified retention characteristics. Glass-alkylated OV-225 columns have been tested in the analysis of PFB fluoroacetate, and the substantial increase in retention time of this highly volatile compound was found to improve the precision of analysis. PFB-alkylated columns should prove generally useful in gas chromatographic analysis of small relative molecular mass compounds. |
| Keywords: | GLC Glass capillaries Surface alkylation Pentafluorobenzylbromide |
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