Reversal of EOF

The separation of anionic solutes in CE may lead to extended time of analysis due to their migration in the direction opposite to EOF. One method of decreasing the analysis time is to reverse the EOF, thus making the anions migrate in the same direction as the EOF. In aqueous CE, the addition of long alkyl chain trimethylammonium ions is used for this purpose, e.g. in the analysis of inorganic anions and phenols. This principle may also be used in NACE. However, the long alkyl chain trimethylammonium ions are not able to form hemimicelles at the inner capillary surface when using nonaqueous solvents and thus the EOF is not reversed. Addition of the polycation hexa-dimethrine bromide to the nonaqueous electrophor-esis medium may result in suitable and stable systems with reversed EOF, even when used at fairly low concentrations (0.001-0.05%).

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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