filtration

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learningChemistry
learningChemistry's picture
filtration

Hi,

i am new to chemistry and have a task to filter 18F-FDG (molar mass 181 g/mol) from (a) mixture of 18F-FDG + water, (b)mixture of 18F-FDG + saline. I should do this using a semi-permeable membrane (synthetic or organic). 

I looked at this link http://www.thomassci.com/Membrane/_/POLYCARBONATE-MEMBRANE-FILTERS?q=*
but got confused as there are many memberane filters 0.22, 0.45 micrometre, but how should i decide which on will do the job for me.

Thanks very much in advance 

learningChemistry
learningChemistry's picture
Actually, i want something

Actually, i want something even simpler, meaning a membrane that allows 18F-FDG to diffuse through it but i don't care if saline/water diffuses across the membrane or not. I just want that 18F-FDG should diffuse to the other side (with lower conentration on the other side)... Thanks you...