26,29 Foreseeable future modifications of this process could contain replacing the PVP with polyvinylpolypyrrolidone, which can be a highly crosslinked sort of PVP which is insoluble and might be separated in subsequent treatment method steps with phenol-dependent options. Alternatively, the PVP can be removed by way of ethanol precipitation with https://www.pinterest.com/pin/993958580252569705/