An analysis of coating-efficiency as a measure for capillary column performance

C.A.M.G. Cramers; F.A. Wijnheijmer; J.A. Rijks

doi:10.1007/BF02302939

An analysis of coating-efficiency as a measure for capillary column performance

C.A.M.G. Cramers, F.A. Wijnheijmer, J.A. Rijks

Chemical Engineering and Chemistry

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Abstract

An expression is proposed for the value of the Coating-Efficiency C. E. starting from the Golay-equation, extended to situations of appreciable pressure drop by Giddings. A comparison is made between the coating-efficiency following this theory and the simplified expression for coating-efficiency as generally used in the literature, that neglects the effects of resistance to mass transfer in the liquid phase and the pressure drop. It is shown that the complete equation from the coating-efficiency explains the observations made in practice. Application of the theory described will lead to a better check on film formation in capillary columns.

Original language	English
Pages (from-to)	643-646
Number of pages	4
Journal	Chromatographia
Volume	12
Issue number	10
DOIs	https://doi.org/10.1007/BF02302939
Publication status	Published - 1979

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abstract = "An expression is proposed for the value of the Coating-Efficiency C. E. starting from the Golay-equation, extended to situations of appreciable pressure drop by Giddings. A comparison is made between the coating-efficiency following this theory and the simplified expression for coating-efficiency as generally used in the literature, that neglects the effects of resistance to mass transfer in the liquid phase and the pressure drop. It is shown that the complete equation from the coating-efficiency explains the observations made in practice. Application of the theory described will lead to a better check on film formation in capillary columns.",

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AB - An expression is proposed for the value of the Coating-Efficiency C. E. starting from the Golay-equation, extended to situations of appreciable pressure drop by Giddings. A comparison is made between the coating-efficiency following this theory and the simplified expression for coating-efficiency as generally used in the literature, that neglects the effects of resistance to mass transfer in the liquid phase and the pressure drop. It is shown that the complete equation from the coating-efficiency explains the observations made in practice. Application of the theory described will lead to a better check on film formation in capillary columns.

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JO - Chromatographia

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An analysis of coating-efficiency as a measure for capillary column performance

Abstract

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