To measure the quantity of BK,the radioimmunoassay(RIA) has been devised,but the traditional RIA method has certain defects,such as presence of numerows interfering factors and errors and time consuming.

• 关于BK的含量分析，虽早已建立了放射免疫测定法（RIA），但尚存在干扰因素多、误差大和费时等缺点。