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放射免疫测定(RIA)精确度和灵敏度高,适于大数量标本的测定,其缺点是要处理放射性同位素。非同位素示踪器如荧光示踪器技术稳定,具有设备简单而精确度高的特点。荧光现象的广泛性提供避免血浆分离而进行匀浆分析的可能,而前者恰为RIA操作中易导致不精确的原因。血管紧张素Ⅰ、Ⅱ血浓度低并缺乏可靠的特异性的抗血管紧张素抗血清,影响了此法的进行。本文报告常用的测定血管
Radioimmunoassay (RIA) is highly accurate and sensitive, suitable for the determination of large numbers of specimens, with the disadvantage of dealing with radioisotopes. Non-isotopic tracer, such as fluorescent tracer technology, has the characteristics of simple equipment and high accuracy. The broadness of the fluorescence phenomenon offers the possibility of avoiding plasma separation for homogenization analysis, whereas the former is precisely the reason that RIA operations are prone to cause inaccuracies. Angiotensin I, II low blood concentration and the lack of reliable specific anti-angiotensin antiserum, affecting the progress of this method. This article reports the commonly used assay of blood vessels