The microcalorimetric method was used to measure the displacement adsorption heat of denatured (by 1.8 mol L 1 guani......

采用N 羟基珀酰亚胺活化酯法活化单甲氧基聚乙二醇 ,测定了聚乙二醇 (PEG)的活化度为86 2 %。以活化的PEG对牛胰核糖核酸酶进行化......