SEC with Selective Detectors

Fixed wavelength ultra-violet or infra-red detectors are used with a 'universal' detector (such as DRI) and appropriate software to obtain information on how specific chemical groups vary through the molecular weight distribution. However, it should be noted that appropriate spectral windows for the solvent are required to allow this approach to be used and the presence of antioxidants or other additives, in the solvent, can be a problem.

Modern diode array detectors can be used to obtain more complex information where applicable.

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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