Figure 5.

GUI for in-line SEC measurements, provided as part of the py4xs.notebooks module. The scattering data are presented at chromatograms of intensity integrated within user-specified q-ranges (upper plot, integrated in the ranges 0.02–0.027 Å⁻¹ and 0.05–0.12 Å⁻¹), as well as a 2D intensity map (lower plot). The offset in time between the X-ray data and the UV detector data (solid line) is due to the different flow rates on the two branches of split sample flows. Buffer scattering subtraction can be performed in either normal mode, where the given buffer frames are averaged to give buffer scattering, or in SVD mode, where the buffer scattering is interpolated as described in the text.