In PEG+ Ethanol solution after membrane separation by which techniques we can determine ppm concentration in permeate and retentate solution?
Dear Naveed,
Simple method is to remove the ethanol in rota-vapor. PEG was not evaporated so you will get PEG after rota-vapor. By measuring weight of either ethanol or PEG, you can calculate the ppm.
Regards,
Sanjay
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