Talk:Membrane osmometer

Limitations
''For $$M_n$$ below 30,000 grams per mole, the solute permeates through the membrane and the measurements are inaccurate. ''

Excuse me for being blunt - above statement is complete rubbish -- Wilhelm Pfeffer did measurements with Sucrose which has molar mass of 342.4 grams per Mol. I can only assume that you misinterpreted the context of the reference which - according to the title - probably deals with polymer membranes - not membranes in general. Please correct this gross factual error. Regards, --Burkhard (talk) 19:43, 5 November 2015 (UTC)

What the osmometer is really for?
Osmometer is a device for measuring osmotic pressure not molecular weight! Of course it can be used for estimation of polymer mw. Mkotl (talk) 09:46, 11 December 2016 (UTC)

Use of $$M_n$$
Since we're talking about average molecular weights, $$\overline{M_n}$$ with a dash over it should be used instead of just $$M_n$$.Gosseweening (talk) 19:45, 23 May 2017 (UTC)