26,29 Long run modifications of this method could involve replacing the PVP with polyvinylpolypyrrolidone, that is a really crosslinked type of PVP that is insoluble and might be divided in subsequent treatment method steps with phenol-based mostly solutions. Alternatively, the PVP may very well be taken off through ethanol precipitation https://www.facebook.com/NewTechFind/posts/pfbid0CwMpcjiJzcLtyEKCdEd7gPk21SBWNGgzoCaN5M9GXhAMRRXjbRBZDcKreGiYuY6Sl