High performance liquid chromatography (HPLC) is an established technique with a vast number of stationary phases available, but the efficiency is ultimately limited by the size of the particles used to pack the columns. Theory shows that for the highest efR-ciency the particles should be of a much smaller diameter than those in current use, but a signiRcant move in this direction is constrained by the pressure required from the pumping system used to deliver the mobile phase. Capillary electrochromatography (CEC) uses an electric Reld rather than hydraulic pressure to drive the mobile phase through the packed bed of stationary phase. Since the resulting Sow pro-Rle is plug-like rather than parabolic, very high efficiencies can be achieved.

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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