The determination of the solution structure of a protein by small angle X-ray scattering (SAXS) requires monodisperse samples. Here, we present two possibilities to ensure minimal delays between sample preparation and data acquisition: online size-exclusion chromatography (SEC) and online ion-exchange chromatography (IEC).
Brennich, M. E., Round, A. R., Hutin, S. Online Size-exclusion and Ion-exchange Chromatography on a SAXS Beamline. J. Vis. Exp. (119), e54861, doi:10.3791/54861 (2017).