Van Deemter's equation

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Van Deemter's equation

[van dēm′tərz]
an expression of a gas chromatography relationship between the height equivalent to the theoretic plate and the linear velocity of the carrier gas.
References in periodicals archive ?
Using the van Deemter equation, which predicts an optimum velocity at which there will be the minimum variance per unit column length and therefore a maximum efficiency, it can be deduced that the linear flow rate of hydrogen can be greater than that of helium, but also offer equal peak separation efficiency.
The UPLC system took advantage of the basic van Deemter equation governing IC separations and the development of smaller LC column particles (sub-2-micron).
Using the van Deemter equation, which predicts an optimum velocity at which there will be the minimum variance per unit column length and, therefore a maximum efficiency, it can deduced that the linear flow rate of hydrogen can be greater than that of helium but also offer equal efficiency in the gas's ability to separate peaks.