I need a substantiation (methodology) to prove that there are not any interactions between rubber stopper and parenteral solution of sodium chloride. I look forward to any useful comments.
Read ISO 8871 standards ""Elastomeric parts for parenterals and for devices for pharmaceutical use".
Check your parenteral solution for any visible contaminants leaching out of stoppers.. either by DLS or UV-vis.. secondly check FTIR to detect any chemical changes..