牛血清白蛋白的压电免疫测定及电极的洗脱

DETERMINATION OF BSA BY A PIEZOELECTRIC CRYSTAL IMMUNOSENSOR AND THE WASHING OF THE ELECTRODE

在镀银石英晶片上用压电免疫方法测定了０．５～５０ｍｇ／Ｌ范围内的牛血清白蛋白的浓度，得到线性响应；并较全面地研究了压电晶片的回复性使用问题，以０．２ｍｏｌ／Ｌ甘氨酸－盐酸（ｐＨ＝２．

The determination of BSA (bovine serum albumin)with a silver plate quartz crystal microbalance(QCM) was discussed.The frequency shift was proprotional to the concentrations of BSA in the range of 0.5￣50 mg/L.The reusability of the electrode was studied in detail.The 0.2 mol/L glycine HCl(pH=2.0)was selected as the washing solution.