Briffa, S. M., Sullivan, J., Siupa, A., Carnell-Morris, P., Carboni, M., Jurkschat, K., Peters, R. J. B., Schultz, C., Seol, K. H., Kwon, S., Park, S., Yoon, T. H., Johnston, C., Lofts, S., Valsami-Jones, E. Nanoparticle Tracking Analysis of Gold Nanoparticles in Aqueous Media through an Inter-Laboratory Comparison. J. Vis. Exp. (164), e61741, doi:10.3791/61741 (2020).