bonjour,
Comment faire pour connaitre le débit optimal d'une colonne GC ?
merci de votre aide !
Lud !
Moderator: Interchim ASciences
The van Deemter equation relates the resolving power (HETP, height equivalent to a theoretical plate) of a chromatographic column to the various flow and kinetic parameters which cause peak broadening :
Where :
HETP = height equivalent to a theoretical plate, a measure of the resolving power of the column [m]
A = Eddy-diffusion parameter, related to channeling through a non-ideal packing [m]
B = diffusion coefficient of the eluting particles in the longitudinal direction, resulting in dispersion [m2 s-1]
C = Resistance to mass transfer coefficient of the analyte between mobile [m] and stationary phase [s]
u = Linear Velocity [m s-1]
(source wikipedia)
Home Skip Navigation Links > Technical Support > Instruments & Systems > Gas Chromatography > Utilities > GC Calculators
Return to GAS CHROMATOGRAPHY | CHROMATOGRAPHIE GAZEUSE
Users browsing this forum: No registered users and 0 guests