Polyethylene Glycol 600/2% v/v Ethanol, 70 per cent/q.s. Polyvinylpyrrolidone/5% w/v
配制方法:
Therequired amount of polyvinylpyrrolidone is weighed and transferred to a mortar. Twenty cc of 70 per cent ethanol is added and the mixture triturated until solution is clear. Polyethylene glycol 600 is added and the solution diluted to 100 cc with the ethanol.