I

Eluent speed

Figure 2 Influence of eluent speed on efficiency. Comparison between high-performance liquid chromatography (HPLC) and supercritical fluid chromatography (SFC).

Eluent speed

Figure 2 Influence of eluent speed on efficiency. Comparison between high-performance liquid chromatography (HPLC) and supercritical fluid chromatography (SFC).

stable enough and lose more than half of their efficiency after a few hours use. This is due to rearrangement of the particles in the column induced by the friction of the flowing solvent. As for Prep-HPLC the solution to this problem is dynamic axial compression columns in which a piston continuously compresses the chromatographic bed, thus preventing the occurrence of voids and the loss of efficiency.

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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