Repeatability and reproducibility of the optimized method for Dox1. Fractograms (normalized excess Rayleigh ratio at 90°), Rg (line) and Rh (dots) for replicate Dox1 injections using the same method on different platforms and labs. Repeatability of A) four replicate injections performed by Lab1 (Wyatt Eclipse Dualtec), B) four replicate injections performed by Lab2 (Wyatt Eclipse 4), C) three replicate injections performed by Lab3 (Postnova AF2000) and D) reproducibility of the optimized method, comparing a single injection by Lab1 (black), Lab2 (orange) and Lab3 (green). (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)