26,29 Future modifications of this process could consist of changing the PVP with polyvinylpolypyrrolidone, which can be a highly crosslinked sort of PVP that is certainly insoluble and can be divided in subsequent remedy steps with phenol-based mostly methods. Alternatively, the PVP may be eliminated by means of ethanol precipitation https://www.facebook.com/NewTechFind/posts/pfbid0tQJ2pTCih226NmXme1cPwK1zodWnKCqJRhJPNtCR6njaaSKN3whSRye2WrpBG88hl