Hello
I have prepared chitosan film forming solution by dissolving 2g chitosan at 100ml acetic acid 1% and after stirring and good dissoving I want to remove any undissolved particles by whatman paper no. 3 that is used in an article (Development and evaluation of a novel biodegradable film made from chitosan and cinnamon essential oil with low affinity toward water) but for its high viscosity it didn't pass from paper. I used the papers no. 2 and 1 but the result was same. I used centrifuge by 15000 g and there was no sedimentation. Can you help me how can I remove the undissolved particles?
thanks
Hi Masoud,
Try centrifuging it and the debri or undissovled bits should settle down and you will have a clear solution.
The only downside is you will have to pour the solution in vials of either 25 to 50 mL depending on the size of the holder in your centrifuge
Regards
Saad,
Mr Darbasi
I suggest centrifugation or filtration with appropiate filter, depend of solvent is each case
Dear Mr. Masoud
you can use vacuum pump to filter your solution.
It can be appropriate way to filter your solution out .
Thanks for all your answers.
Fortunately I solved my problem. First, I heated film forming solution to 60 C and then I filtrated it by using a vacuum pump and whatman paper no. 3. It got 6 hours for 800 cc.
thanks.
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