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. Author manuscript; available in PMC: 2010 May 15.
Published in final edited form as: Anal Chem. 2009 May 15;81(10):4060–4067. doi: 10.1021/ac900265f

Figure 4.

Figure 4

Simulated electric field distribution along the symmetry axis of the pulled capillary when a 500 V dc potential is applied. The capillary has a tip opening of 2 µm. The x axis labeled as ‘y’ is the distance from the tip opening, with a negative value outside the capillary and a positive value in the capillary. A cell with a diameter of 25 µm is placed 5 µm away from the tip opening at the position of y = −5 µm. Refer to reference 22 for the model set up (the model and boundary conditions are given in Supporting Information). Temperature is set to 298.15 K.