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Van Deemter Equation
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Geliefert zwischen Do., 22.01.2026 und Fr., 23.01.2026
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High Quality Content by WIKIPEDIA articles! The Van Deemter equation in chromatography relates the variance per unit length of a separation column to the linear mobile phase velocity by considering physical, kinetic, and thermodynamic properties of a separation. These properties include pathways within the column, diffusion (axial and longitudinal), and mass transfer kinetics between stationary and mobile phases. In liquid chromatography, the mobile phase velocity is taken as the exit velocity, that is, the ratio of the flow rate in ml/second to the cross-sectional area of the column-exit flow path.' For a packed column, the cross-sectional area of the column exit flow path is usually taken as 0.6 times the cross-sectional area of the column. Alternatively, the linear velocity can be taken as the ratio of the column length to the dead time. If the mobile phase is a gas, then the pressure correction must be applied. The variance per unit length of the column is taken as the ratio of the column length to the column efficiency in theoretical plates.
Weitere Informationen
- Allgemeine Informationen
- GTIN 09786131122897
- Editor Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
- Größe H4mm x B220mm x T150mm
- EAN 9786131122897
- Format Fachbuch
- Titel Van Deemter Equation
- Gewicht 128g
- Herausgeber Betascript Publishing
- Anzahl Seiten 84
- Genre Mathematik
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