How can I calculate the %yield of chitosan nanoparticles especially if I don't have a freez dryer or ultracentrifuge?

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My regards

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Mahmoud EL-Badry

You must separate the nanoparticles in dry form firstly by any method and calculate the yield percentage

Sheryhan Farghaly

Thanks Dr.mahmoud. I tried to use speed vac (for dryness) but unfortunately i prepared these nanoparticles in buffer and the salts of buffer ppt too with them and so the yield was bigger than normal even i dried blank of buffer against them.