Results The protein content of the purified EPF was 0.375 mg/ml,and a single band with a molecular weight of 26500 was observed on SDS PAGE profile.

• 以等电聚焦电泳法检测其等电点。 结果 从人流血中分离出EPF活性样物质 ；其蛋白含量为 0 .；375mg/ml；SDS PAGE见 1条均匀带；其相对分子质量为2 6 5 0 0；等电点为 6