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Ultimate resolution in open tubular columns

✍ Scribed by de Clerk, K. ;Smuts, T. W. ;Buys, T. S.

Publisher
John Wiley and Sons
Year
1979
Tongue
English
Weight
398 KB
Volume
2
Category
Article
ISSN
0935-6304

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✦ Synopsis

Abstract

The expression for the resolution function, R, in terms of operating parameters for open tubular columns has been extended to include inlet contributions to the peak variance. Subsequent optimization has revealed the existence of optima in the column radius, the stationary phase thickness and the diffusion coefficient ratio in the stationary and mobile phases‐in addition to the well‐known optimum in the flow velocity. This implies that R at optimum becomes R=f(K)L^0.6^V~i~^βˆ’0.2^, i.e. a function only of the column length, L, the inlet volume, V~i~, and the concentration distribution coefficient, K. For given K, L and V~i~ all other parameters such as retention time and pressure drop can thus be directly computed. The information is finally consolidated in the form of contour diagrams. The text itself is cast in the form of a science fantasy.

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## Abstract Capillary columns coated with Carbopack materials, which provide separation by a mixed partition/adsorption mechanism or by adsorption alone, have recently been developed. The reproducibility of the columns is demonstrated and applications shown in which they provide separations which a