Versatile short capillary column in gas chromatography

Abstract

or branch point was the only difference between the pre dieted and the correct structure. In one case (No. 6) the molecular formula was incorrect and hence there was no chance of a correct structure prediction. However, in this case the results were still useful, because the main structure (a substituted benzene ring) was correctly predicted even though the substituted groups were incorrect. In the final case (No. 5) the computational results were so contradictory as to make very little sense. Hence, no structure prediction was attempted in this case. It should be noted that even trometry. The peak identified as m-6P50 is bis[m-(m-phenoxyphenoxy)phenyl]ether. SUMMARYThe short capillary column is a highly versatile column applicable to a wide variety of assignments. It is particularly (27) W.

Gas chromatography

“…The performance characteristics of "sandwiched columns," consisting of carbon threads inserted in a glass capillary and coated with a liquid phase, were evaluated by Liberti and coworkers (330). Short capillary columns (e.g., 10 m) were found to be versatile and applicable to a wide variety of separations as they were able to elute petroleum fractions with end points above 530 °C (371). High temperature separations on glass capillary columns with carborane stationary phases were used to 350 °C with good efficiency (710) and polyphenylether capillary columns separated aromatics, phenols, and aliphatics in the 350-400 °C boiling fraction of tars (750).…”