Combination of Planar Chromatography with Raman Spectroscopy

Regular Raman spectroscopy as well as the SERS technique (surface enhanced Raman scattering) is suitable for the identification of substances on a TLC plate. In situ Raman generates spectra that are more or less identical with published Raman spectra measured on solids. Detection limits are comparatively poor, i.e. in the range of 0.5-5 i g per fraction. SERS is suitable for detection and identification of compounds in the picogram range, if the layer is treated with a colloidal silver solution. The user must record a custom library of SERS spectra from a similar layer in order to perform an identification of a totally unknown material.

A multidimensional combination of outstanding separation power is that of HPLC coupled with automated multiple development planar chromatography featuring evaluation by a special SERS technique employing silver deposition via the gas phase.

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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