Large dispersion

SnI RX RX +R...X - R -X Increased Dispersed Large increase Small decrease... 

The Van Deemter equation remained the established equation for describing the peak dispersion that took place in a packed column until about 1961. However, when experimental data that was measured at high linear mobile phase velocities was fitted to the Van Deemter equation it was found that there was often very poor agreement. In retrospect, this poor agreement between theory and experiment was probably due more to the presence of experimental artifacts, such as those caused by extra column dispersion, large detector sensor and detector electronic time constants etc. than the inadequacies of th Van Deemter equation. Nevertheless, it was this poor agreement between theory and experiment, that provoked a number of workers in the field to develop alternative HETP equations in the hope that a more exact relationship between HETP and linear mobile phase velocity could be obtained that would be compatible with experimental data. 

Radial dispersion Large-diameter reactors with low flow rates (Usually ignored in preliminary models)... 

Add the required amount of agarose powder. Swirl to disperse large clumps. 

Case study optimised anomalous dispersion large unit cell cytochrome C4 (Sawyer, Harding, Gould, Papiz and Helliwell as... 

Transformation of the process diagram into a corresponding simulation flow sheet is illustrated in Figure 6.5b. In principle, all plant elements may be represented by separate submodels. For practical applications, though, it is typically sufficient to take into account only a time delay as well as the dispersion of the peaks until they enter the column. This can be achieved by a pipe flow model that includes axial dispersion. Large volume detectors (including some connecting pipe-s) can be approximated, if required, by a stirred tank model. 

It was noted previously that fatty acid solubility in water was not influenced by the physical state of the fatty acid at the experimental temperature. The striking influence of physical state on monoglyceride solubilization suggests that bile acids can only disperse large liquid aggregates when the short-range intramolecular forces have already been disrupted by the combined effect of heat and water. 

Relative energy dispersion Large Large Large Medium Small Large Large Medium... 

Because the problem of the role of mucus continued to trouble me, I attacked mucus with urea. Urea disperses large aggregates like mucus that are held together by hydrogen bonds. In the course of that work I encountered still another example of the fruitfulness of application of the concept of a broken barrier. 

A device to disperse large bubbles of air and a electrically-powered blowered air unit for 0.4 to 0.6 bar. 

What boundary conditions are satisfied in practice and how to obtain the RTD experimentally is less clear. The uses of two-place measurements and the extension of impulse response theory to open systems are discussed in (4). For small intensity of dispersion (large Pe ) the boundary conditions effect diminishes and approximate expressions can be used for the E-curve (see Table 1). 

Catalyst settling and dispersion Large effects are possible, dependent on and Only possible if d. 6, in this case catalyst is uniformly distributed... 

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