As shown in , the enthalpy of adsorption for the two dimethylbutane isomers is essentially identical up to a loading of 0.6 mmol/g. If diffusion is not the primary cause of the separation and the material is saturated at the breakthrough event, the strength of adsorption of these isomers ...
The separation of the isomers of perfluorohexane by gas-liquid chromatography is difficult for two reasons: (1) the isomers have similar vapor pressures in that they all boil within a range of one or two degrees, and (2) they all show essentially identical thermodynamic behavior in any given...
However, the drift times of the rest of the studied saccharides were essentially indistinguishable. These results for the monosaccharide isomers were in agreement with the previous report38. Effect of derivatization reagents. The ion mobility shift reagent strategy was employed to increase the CCSs...
These patterns are markedly identical to the desolvated adsorbent MOF 1, which implies that the sample remains intact after each of the sorption cycles. To check the practical importance of separation, phase 1 was immersed into ternary and quaternary mixture solution of xylenes for 1 h and the ...
The title compounds decompose between 180 and 200°C with identical activation parameters at almost the same rate. It is therefore assumed, that the transition states of these thermolysis reactions have still tetrahedral geometry at ... Nguyen-Tran-Giac,C Rüchardt - 《Berichte Der Deutschen Ch...
(18). The steepness of the dimethylbutane breakthrough events suggests that the separations for these isomers result from essentially equilibrium processes and are not diffusion controlled. As shown inFig. 3F, the enthalpy of adsorption for the two dimethylbutane isomers is essentially identical up ...
such as fried, deep-fried, roasted and grilled foods. Some variation in isomer concentrations between commercial and homemade or wheat and rye bread may have been due to differences in fermentation products, as microbial populations were likely not identical in the sourdough used for each of the...