A fast procedure to immobilize polyethylene glycols in glass capillary columns |
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Authors: | M V Russo G C Goretti A Liberti |
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Abstract: | Polyethylene glycols can be immobilized in glass capillary columns by a new procedure involving covering the glass walls with a layer of graphitized carbon black and by flowing a mixture of the stationary phase and dicumyl peroxide. After curing and conditioning the column is ready for use. Excellent performance is reported for Carbowax 20 M and high molecular weight glycols. For other glycols the immobilized layer is less stable and can be washed out. |
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Keywords: | Gas chromatography GC Glass capillary columns Polyethylene glycol immobilization |
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