In the IFN yielded on the second step of purification, the maximum specific activity of IFN in the collecting fractions was increased up to about 107 international units per mg of protein with a recovery rate of over 40%. 第二步回收40%以上,纯度达10~7国际单位/mg蛋白。
In order to achieve maximum recovery rate and the optimum economic results, steam injection parameters must be optimized. 为了获得蒸汽驱油藏最大采收率和最佳经济效果,必须对蒸汽驱注入参数进行优选。