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. Author manuscript; available in PMC: 2012 Oct 24.
Published in final edited form as: Methods. 2011 Jan 27;54(1):136–144. doi: 10.1016/j.ymeth.2011.01.009

Figure 2.

Figure 2

Sedimentation velocity of a polydisperse polymer system: A subset of radial displacement profiles displayed in SEDFIT obtained from Rayleigh interference fringes (scanned every 2 min) for a low methoxy pectin (Mw ~ 380,000 g/mol). A loading concentration of 0.15 mg/ml in a Beckman XL-I analytical ultracentrifuge (rotor speed 45000 rpm) and a cell of 12mm optical path length was used. The direction of sedimentation is from left to right.