Supercritical Fluid Chromatography

In SFC, mobile-phase modification of the stationary phase and its dependence on fluid density, together with the variation of fluid density along the length of the column, result in additional sources of zone broadening that cannot be treated in an exact way. Packed columns used in SFC are identical in type to those used in LC. When separations can be achieved with a modest number of theoretical plates (up to about 80 000), then packed columns provide much faster separations, perhaps up to an order of magnitude, than open-tubular columns, which are generally preferred when very large numbers of theoretical plates are required.

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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