Laurence D J, Turberville C, Anderson S G, Neville A M
Br J Cancer. 1975 Sep;32(3):295-9. doi: 10.1038/bjc.1975.227.
In 1974, the National Institute for Biological Standards and Control (NIBSC) established the first British Standard for carcinoembryonic antigen (CEA) for use in comparative quantitative assays. The Standard, which was prepared for material processed by the Chester Beatty Research Institute, is in the form of a freeze-dried powder, sealed in all glass ampoules code labelled 73/601 and containing pure dry nitrogen. For practical purposes, each ampoule contains 100 units of CEA activity.
1974年,英国国家生物标准与控制研究所(NIBSC)制定了首个用于比较定量分析的癌胚抗原(CEA)英国标准。该标准是为切斯特·比蒂研究所处理的材料制备的,呈冻干粉末形式,密封在所有玻璃安瓿中,编码为73/601,并含有纯干燥氮气。实际使用中,每个安瓿含有100单位的CEA活性。