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High performance capillary electrophoresis - T.E.A.M.

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Instrumentation/Operation<br />

Pressure<br />

Sample<br />

Sample<br />

Hydrodynamic<br />

Vacuum<br />

a)<br />

b)<br />

c)<br />

Siphoning<br />

Sample<br />

Electrokinetic<br />

d)<br />

Sample<br />

Figure 51<br />

Methods of sample injection<br />

The volume of sample loaded will be a function of the<br />

<strong>capillary</strong> dimensions, the viscosity of the buffer in the<br />

<strong>capillary</strong>, the applied pressure, and the time. This volume<br />

can be using the Hagen-Poiseuille equation.<br />

DPd<br />

Volume = 4 p t<br />

(28)<br />

128 hL<br />

84

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