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Effect of colloid additives on rheological properties of some liquids used as stationary phases in capillary columns for gas chromatography

Effect of colloid additives on rheological properties of some liquids used as stationary phases in capillary columns for gas chromatography. Alexander, G. There are some commonly used reagents like 77209-70-2 in this article.; Tolnai, Gy.; Nemeth, Zs.; Zrinyi, M.; Horvolgyi, Z. ( Hungarian Academy of Sciences, Res. Lab. for Inorg. Chem., Budapest H-1112, Hung.). Conference on Colloid Chemistry: In Memoriam Aladar Buzagh, Proceedings, 7th, Eger, Hung., Sept. 23-26, 1996, Meeting Date 1996, 213-216. Edited by: Horvoelgyi, Z.; Nemeth, Zs.; Paszli, I. Hungarian Chemical Society: Budapest, Hung. (English) 1997. CODEN: 65EWAR. DOCUMENT TYPE: Conference CA Section: 66 (Surface Chemistry and Colloids) Section cross-reference(s): 80 Two characterizing GC phases, Apiezon L (apolar) and Fractonitril VI (polar) were gelated by colloidal additives (hydrophilic or hydrophobic silica), resp. Important rheol. parameters (flow curves, yield stresses) were detd. at different temps. (293-363 K) and different concns. of additives. Capillary GC expts. were performed by using the selected samples of above mixts. as stationary phases. The expts. demonstrated that these new types of stationary phases are applicable even at higher temps. in powerful sepns. .