[Determination of valaciclovir polybutylcyanoacrylate nanoparticles]

The valaciclovir content of polybutylcyanoacrylate nanoparticles was determined by HPLC after dissolving the valaciclovir-poly butylcyanoacrylate nanoparticles in a solvent mixture. ODS-C18 column was used. The mobile phase consisted of CH3OH-0.02 mol/L KH2PO4 (20:80). The linear range was 2.02-20.20 micrograms/ml; the recovery 97.30%, and RSD 4.90%. This method is accurate and can be used for determining the contents of other nanoparticles.