Shock effects in nonlinear chromatography

摘要: Shocks are discontinuities of a function that appear under certain sets experimental conditions, such as shock wave. This ideal concept has to be completed by the more realistic notion layer. In layer (pressure for wave, concentration in chromatography) varies very steeply, and all points (e.g., profile) move at almost same velocity itself would case. nonlinear, chromatography, behavior elution band profiles starts deviate markedly from what takes place linear chromatography soon forms. Under influence axial diffusions mass transfer kinetics actual those predicted model. The shocks replaced layers, but their positions migration rates modified only slightly. importance these on shape rate bands is dramatic. Classical concepts retention time, column efficiency, resolution must therefore analyzed within framework theory.