利用紫外分光光度法,略加修正的聚丙烯酰胺凝胶电泳、染色方法和薄层层析扫描技术,对北京大学老龄教工99人(50～60岁)血清LDH总活性及其各种同工酶相对百分活性进行了定量测定。获得该年龄段的相应正常值,并提供某些种病人相应数值的变化情况,为临床同工酶学检验,诊断提供重要线索。 Ultraviolet spectrophotometry, slightly modified polyacrylamide gel electrophoresis, staining method, and thin-layer chromatography scanning technique for serum LDH activity of 99 (50-60 years old) and its fellow workers in Peking University aged staff The relative percent enzyme activity was quantified. Obtain the corresponding normal value of this age group, and provide the changes of corresponding values ​​of some kinds of patients, provide important clues for the clinical isoenzyme test and diagnosis.