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Capillary Chromatography

Capillary chromatography utilizes a capillary column, offering high efficiency and versatility for various separation applications.
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The statement of the theorem

For flow through a cylindrical capillary column of radius rr and length LL, the volumetric flow rate QQ is governed by the Hagen-Poiseuille equation, assuming laminar flow and negligible entrance effects:\nQ=πr48ηΔPLQ = \frac{\pi r^4}{8\eta} \frac{\Delta P}{L} \nWhere η\eta is the dynamic viscosity of the mobile phase and ΔP\Delta P is the pressure drop across the column.