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Flow resistance parameter

Column Type Minimum Reduced Plate Height Minimum Reduced Velocity flow Resistance Parameter Separation Impedance... [Pg.44]

A liquid chromatographic column packed with 5.00 fim diameter solid support particles and having a porosity e = 0.400 is found to have a flow resistance parameter 750. Calculate the specific permeability K0. Assume that the flowrate/pressure drop relationship is identical to that of a bundle of identical parallel capillaries whose axes are spaced (in a square cross-sectional array) a distance of 5.00 /im from one another. What is the single capillary diameter of the hypothetical bundle ... [Pg.85]

Flame ionization detector (FID), 126-129 Flash chromatography, 222, 280 Fast LC, 200 Flow, measurement of, 63 Flow programming, 8, 150 Flow resistance parameter, 64 Fluorescence detector, 207-208 Frontal analysis, 6... [Pg.7]

However, this equation does not include one of the most important LC variables, the particle diameter dp. Consequently, another parameter has been defined3 that does include it. It is called the flow resistance parameter, ... [Pg.40]

Volume fraction Flow resistance parameter Obstruction factor (rate equation)... [Pg.300]

The velocity we can obtain at a given pressure will also be limited by the resistance to flow presented by the column, known as the specific column permeability. In equation (17-16) the permeability is broken up into its two main components the flow resistance parameter, ( ), and the particle diameter squared, dl, and can be expressed as... [Pg.774]

The pressure drop can be calculated by use of the dimensionless flow resistance parameter, ... [Pg.371]

Column type Minimum reduced plate height Minimum reduced velocity Flow resistance parameter Separation impedance... [Pg.40]

Assumptions viscosity = 3.5 x 10 N.s/m and solute diffusion coefficient = 2.5 x 10" m /s. (h = reduced plate height, v = reduced mobile phase velocity, average particle size)... [Pg.514]

A dimensional analysis of the perfonnance index shows that it has the dimension of an inverse viscosity. With a little algebra, using the equations for permeability [Eq. (2.51)3, die definitions of the flow-resistance parameter [Eq. (154)3, linear velocity [l s. (110 and (111)3. retention factor [Eq. (161)3 and the reduced plate height [Eq. (113)3, we can lit the performance index into its components ... [Pg.24]

From equations (2.54) and (253) and the definition of the reduced plate height, we can see that it depends primarily on the reduced plate height and the flow resistance parameter ... [Pg.24]

Flow resistance parameter Measure of the resistance to flow of the mobile phase

[Pg.4810]

On a practical level, a parameter that is useful for evaluating columns is the flow resistance parameter ) defmed as ... [Pg.87]

Fraction of total solute in a given phase degrees phase change flow resistance parameter... [Pg.1007]

See other pages where Flow resistance parameter is mentioned: [Pg.44]    [Pg.513]    [Pg.563]    [Pg.699]    [Pg.847]    [Pg.2]    [Pg.7]    [Pg.148]    [Pg.179]    [Pg.64]    [Pg.84]    [Pg.341]    [Pg.774]    [Pg.47]    [Pg.95]    [Pg.39]    [Pg.40]    [Pg.41]    [Pg.515]    [Pg.515]    [Pg.24]    [Pg.199]    [Pg.252]    [Pg.188]    [Pg.2544]    [Pg.4811]    [Pg.692]    [Pg.107]    [Pg.84]   


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