On-line testing of gas chromatographic columns with a programmable computing integrator |
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Authors: | W Kimpenhaus F Richter L Rohrschneider |
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Institution: | (1) Zentralbereich Forschung und Entwicklung/Abteilung Analytik, Chemische Werke Hüls AG, Postfach 1320, D-4370 Marl, FRG |
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Abstract: | Summary A program is described which calculates the number of effective plates and the coating efficiency over the entire range of a test chromatogram. The peak widths at half height are derived by assuming a Gaussian peak shape. The interpolated peak width at k=4 is used for computing a standardized number of effective plates. Plate height, column permeability, overall performance and a novel parameter called sampling efficiency are calculated from 5 other figures — i. e. carrier gas code, pressure drop, column length, column temperature and particle size.Dedicated to Dr. Leslie S. Ettre for his 60th birthday. |
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Keywords: | Column test procedure Efficiency parameters of chromatographic columns Computing integrator Viscosity of carrier gases Sampling efficiency |
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