该磁珠的说明书上写到:Addition of ammonium sulphate to a final concentration of 1.2M(1.0-1.5M) will increase the amount of antibody coupled to the beads,and can give an improved performance in some applications.我觉得可能是因为我用的这种磁珠表面是疏水性的,而加入少量的盐能使抗体的疏水区暴露,更有利于抗体与磁珠的结合。但是含硫酸铵的硼酸缓冲液每次开盖用的时候都能闻到刺鼻的味道,可能真的分解产生氨了。作者: wu11998866 时间: 2013-10-25 23:01