I am purifying polymer using dialysis (MWCO 1000), but I got precipitate during dialysis,now how to treat the sample before freez-drying. suggestions?

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Abdelkader BOUAZIZ

Dear Ihsan,

Why not doing a simple filtration before freeze-drying. Regards

Ihsan Ullah

hmmmm agreed with you...but I was confused about the chemical composition of precipitated polymer and the soluble species.

did you made any experimental characterization to prove the nature of the precipitate and the soluble compounds ? Regards

Dear Abdelkader

not yet....I am proceeding to investigate the chemical nature of precipitate and soluble part. thanks for your interest.