How can I measure the charge/zeta potential of magnetic core-shell nano particles in laboratory (we don't have a DLS) ??

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Alan F Rawle

AC voltage source, microscope, and stopwatch. Sufficient conductivity in dispersed phase.

Mohammad Reza Abdi

Dear Dr. Alan. thanks for your answer. would you give me a paper or method?

http://lmgtfy.com/?q=zeta+potential+stopwatch

https://books.google.com/books?id=AjSG6dpwQJwC&pg=PA155&lpg=PA155&dq=zeta+potential+stopwatch&source=bl&ots=mAO45LWsmJ&sig=NgIJhc_AAZVQD5aMdvQYJmgSG2Q&hl=en&sa=X&ved=0ahUKEwj34qyZ4eHPAhVGOD4KHTfXBDsQ6AEIVzAI#v=onepage&q=zeta%20potential%20stopwatch&f=false

https://books.google.com/books?id=Q7bMBQAAQBAJ&pg=PA212&lpg=PA212&dq=zeta+potential+stopwatch&source=bl&ots=5y2VY-CZeR&sig=7TZfsf783SzERJseBDmuMSGYnSQ&hl=en&sa=X&ved=0ahUKEwjo8emA4uHPAhXHXD4KHTMFDmsQ6AEIYDAJ#v=onepage&q=zeta%20potential%20stopwatch&f=false

thanks again Dr. Rawle for books.