Mobility of Peaks/Bands
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Parameter
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Influence
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Electrophoresis buffer
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The older (depletion of ions) the slower the run.
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Viscosity of the gel matrix
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The lower the faster the run.
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Voltage
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The higher the faster the run.
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Sample DNA concentration
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The higher the faster the run.
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Fig. 1
The same size standard run under different
conditions. The pattern is very similar but in the
lower run, the sample peaks appear earlier and
in a shorter time interval. Therefore, the whole
sample appears 'compressed' if compared with
the upper one.
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