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Contact angle mobile phase velocity

An alternative approach to forced flow is to seal the layer with a flexible membrane or an optically flat, rigid surface under hydraulic pressure, and to deliver the mobile phase to the layer by a pump [9,41,43-46]. Adjusting the solvent volume delivered to the layer optimizes the mobile phase velocity. In the linear development mode, the mobile phase velocity (uf) will be constant and the position of the solvent front (Zf) at any time (t) after the start of development is described by Zf = Uft. The mobile phase velocity no longer depends on the contact angle and solvent selection is unrestricted for reversed-phase layers in forced flow, unlike capillary flow systems. [Pg.508]

See other pages where Contact angle mobile phase velocity is mentioned: [Pg.846]    [Pg.579]    [Pg.524]    [Pg.4806]    [Pg.4807]    [Pg.18]    [Pg.507]    [Pg.67]    [Pg.333]    [Pg.129]    [Pg.579]    [Pg.506]    [Pg.506]    [Pg.690]    [Pg.691]    [Pg.507]   
See also in sourсe #XX -- [ Pg.506 ]



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