Principles of CRPC

In column RPC (see Figure 12) there is no vapour space - the stationary phase is placed in a closed circular chamber (column). The volume of stationary phase stays constant along the separation distance and the flow is accelerated linearly by centrifugal force, hence the name 'column' RPC. Because a closed system is used, there is no vapour space and any stationary phase can be used - fine particle size, with or without binder. The rotating planar column has a special geometric design described by eqn [1]

where r = radius of the planar column, h = actual height of the planar column at radius r, a, b, c, and K = constants.

This design eliminates the extreme band-broadening which occurs normally in all circular development techniques, and so combines the advantages of both planar and column chromatography.

Solar Panel Basics

Solar Panel Basics

Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.

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