Ascending Paper Chromatography

In the ascending mode of development the paper is suspended so that the lower edge is below the level of the solvent, and the solvent moves up via capillary action. An alternative to suspending the paper was to form a self-supporting cylinder from the paper. These arrangements are illustrated in Figure 2. As with TLC, multiple development, with either the same or different solvent, was used to improve resolution, although the time taken for each development must have made this especially tedious to perform.

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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