Supporting data for: Conductometric Process Analytical Technology for Real-Time Endpoint Control of Graphene Oxide Dialysis Purification

Supporting data for the article "Conductometric Process Analytical Technology for Real-Time Endpoint Control of Graphene Oxide Dialysis Purification" (Mr. S.P. Popov, Mr. V.A. Manuilenko, Mr. V.V. Koshlan, Prof. Dr. M.A. Proskurnin, Dr. I.V. Mikheev; Lomonosov Moscow State University). Submitted to: Analytica Chimica Acta (Fri Jul 31, 2026). The deposit contains raw and processed data, analysis code, and a consolidated long-format dataset needed to reproduce the figures and tables of the article and its Supporting Information. It covers eight dialysis purification experiments monitored by in-line conductometry (10-second logging), with hourly conductivity increments (delta-kappa), the Ki / Ki-tilde stopping criterion, ICP-OES metal concentrations (Mn, Ti) for validation, and FTIR spectra before and after H2O2 treatment. Funded by the Russian Science Foundation (project No. 24-73-10012).