摘要
为了获得血小板冰冻保护液 (丙二醇 氯化钠 水 ,PG NaCl H2 O)冰冻降温的数学模型 ,本研究使用差示扫描量热仪分别测定出不同浓度和不同比例条件下丙二醇 氯化钠 水三元溶液的凝固点 (Tf) ,然后将已有的公式和实验所得的数据通过计算机进行拟合。结果获得了一个数学模型 ,该数学模型描述的是在PG NaCl H2 O溶液中Tf变化与溶质浓度和PG NaCl(质量比 )两个参数变化之间的函数关系。结论 :把该方程与血小板的渗透性特性的参数相结合 ,可以描述在平衡冷冻状态下 ,不同PG浓度时血小板的体积变化 ,指导血小板低温保存。
In order to acquire freezing model of the cryopretective solution (NaCl propylene glycol water ternary system)for platelet, the melting points (T f) of this cryopretective solutions with different solute concentration and different ratio of PG mass to NaCl mass were measured by using a differential scanning calorimeter (DSC), and these experimental data were fitting by computer. An empirical equation was derived which characterized the Tf as a function of the solute concentration and the ratio of PG mass to NaCl mass inside this solution. It was concluded that the equilibrium freezing model for human platelets in this system could be used to instruct platelet cryopreserving techniques.
出处
《中国实验血液学杂志》
CAS
CSCD
2003年第1期92-95,共4页
Journal of Experimental Hematology
关键词
血小板低温保存
低温保存液
相图
熔点
丙二醇
platelet cryopreservation
cryoprotective solution
phase diagram
melting point
propylene glycol