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. Author manuscript; available in PMC: 2009 Jul 15.
Published in final edited form as: Anal Chem. 2008 May 24;80(14):5583–5589. doi: 10.1021/ac800549k

Figure 8. Comparison of electrophoretic separation with chromatographic separation.

Figure 8

(A) Chromatographic separation of the 1 kbp DNA ladder under a pressure of 170 psi; (B) Electrophoretic separation of the 1 kbp DNA ladder under an electric field of 90 V/cm. The nanocapillary had a total length of 46 cm (42 cm effective), and a radius of 500 nm. 10 mM TE (pH 8.0) was used as the background electrolyte for (A) and the eluent for (B). The sample contained 50 ng/µL total DNA. A pressure injection scheme (at 100 psi for 10 s) was employed in both cases.