Absence of Solvent

The advantage of preparative GC compared with preparative liquid chromatography is its low cost. Indeed, the main drawback of preparative LC is the high cost associated with the large amounts of solvent used. In preparative GC, the equivalent of the solvent is the carrier gas, which is easily separated from the purified sample and can then be recycled at low cost. As a consequence, a large scale GC process costs from 10 to 100 times less than a preparative LC process and the purified sample is collected free of solvent.

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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