In the past, detection of the CCC effluent has been performed by adapting the UV/visible absorbance monitoring system used in HPLC. In this case, a straight vertical flow cell should be used. In order to avoid trapping the droplets of the stationary phase in the cell, the mobile lower phase should be introduced from the bottom of the flow cell upward and the mobile upper phase from the top of the flow cell downward. In addition to absorbance measurement, other monitoring methods may also be used which include post-column reaction, interfacing with a mass spectrometer or nuclear magnetic resonance (NMR), laser light scattering detection, pH or conductivity measurement, etc. Most of these methods are less sensitive to the carryover of the stationary phase droplets and therefore will produce better elution curves.

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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