Despite its advantages preparative GC has a limited range of applications.

The first reason is technical: the processed compounds must be able to be vaporized without decomposition and, even for thermostable compounds, productivity considerations limit the application of preparative GC to compounds with normal boiling points under 250°C.

The second reason is economic: to separate compounds with relative volatilities greater than 1.2, distillation is often less expensive.

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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