Procedures: Adopt the Kryoscopy Method for Osmotic pressure measurements to the stock solutions and its diluents;also calculate its osmotic pressure ratio to sodium chloride injection;

• 方法渗透压测定采用冰点测定法，对样品原液及其稀释液进行渗透压测定，并计算与氯化钠注射液渗透压的比值；