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. Author manuscript; available in PMC: 2008 Dec 15.
Published in final edited form as: Anal Chem. 2007 Nov 10;79(24):9364–9371. doi: 10.1021/ac071574q

Figure 1.

Figure 1

Motivation for cascaded free-flow isoelectric focusing. Using cascaded FF-IEF stages to change the pH gradient midway through focusing delivers resolution greater than micro-FF-IEF designs and in less time than conventional FF-IEF.