Displacement chromatography advantages

Displacement TLC (D-TLC) has been applied to scout for the optimum of conditions for high-performance displacement chromatography. Advantages in the use of a planar displacement separation involve the easy and continuous observation of the displacing procedure itself through the separation. That process involves ... 

A sample similar to that shown in Figure 11.10 was used as the feed in displacement chromatography separations [36], For these experiments, the authors employed a longer (105 mm) column of the same diameter as the analytical column. Displacement chromatography on 10 mg of a melittin sample was carried out at two temperatures to demonstrate the advantage of higher temperature on mass transfer kinetics in the separation (Figure 11.11). 

Displacement chromatography is seen primarily as an alternative to overloaded elution chromatography. The advantages of this mode are as follows (1) concentrated product pools are obtained (2) the stationary phase is utilized more effectively (3) large... 

The pH-zone-refining CCC technique shares many unique features with displacement chromatography [6] and has several important advantages over the standard CCC technique such as (a) large sample-... 

However, it is possible to modify almost any adsorbent so as to give linear isotherms (Chapter 4). so that this theoretical advantage of displacement over elution is of academic interest only. A quite specialized form of displacement chromatography, with fluorescent indicators added to the sample so as to mark band boundaries on the column 37), is still widely used in the petroleum industry for the routine analysis of gasolines. The extension of this technique to other sample types has been discussed 38) but has so far found no reported applications. 

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