26,29 Long run modifications of this method could include changing the PVP with polyvinylpolypyrrolidone, which can be a remarkably crosslinked form of PVP that may be insoluble and may be divided in subsequent treatment method steps with phenol-based mostly answers. Alternatively, the PVP can be taken out by using ethanol https://www.facebook.com/NewTechFind/posts/pfbid0gFLrpEPW4jhtWM7JBsKbBkAth2gALUGDD93VCacGPjRKPiAeKBr87g5EJv9Tk4Qdl