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. Author manuscript; available in PMC: 2009 May 11.
Published in final edited form as: J Chromatogr A. 2006 Dec 19;1140(1-2):140–146. doi: 10.1016/j.chroma.2006.11.079

Fig. 5.

Fig. 5

Batch-to-batch variation of retention times for cytochrome c using 20 cm × 100 μm I.D. monolithic poly(butyl methacrylate-co-ethylene dimethacrylate) capillary column prepared using thermally (A, B, and C for batches 1–3, respectively) and photochemically (D, E, and F for batches 1–3, respectively) initiated polymerization. Each batch consisted of 5 columns and 15 separations were carried out with each column. For experimental conditions see Fig. 2.