制备供免疫分析用的癌胚抗原工作标准品并标定其免疫效价。
The article is to prepare the working standard of carcinoembryonic antigen (CEA) for immunoassay and determine its potency.
结论：成功地克隆了有生物学活性的VEGF16 5基因，并制备出vegf免疫学检测工作标准品。
Conclusion VEGF165 gene has been successfully cloned and expressed in this laboratory. The working standard for immunoassay was prepared as well.
支的内毒素工作标准品中除含有3-羟基十四烷酸外，还含有3-羟基十二烷酸，说明其含有非大肠杆菌的细菌。
There was 3-hydroxydodecanoic acid in 20 EU/tube working standard endotoxin, which indicated the presence of impurity of bacterium source.
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