Paper Chromatography

The origins of paper chromatography have been traced back by some authorities as far as Pliny (23-79 ad), who described the use of papyrus impregnated with an extract of gall nuts to detect ferrous sulfate. Further examples of the use of paper chromatography can be seen in the 19th-century work of the German chemist Runge who described in his book Zur Farbenchemie the use of this type of separation for the investigation of inorganic mixtures. Subsequently another book (Der Bildungstrieb der Stoffe) by

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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