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1·Purpose to study the effect of different factors on the efficiency of cleaving fusion protein with cyanogen bromide.

目的研究不同因素对溴化氰切割融合蛋白的影响。

2·Novolac cyanate ester monomer is synthesized by a modified phenol-cyanogen bromide method. The product is characterized by FTIR, gel-time and TGA analysis.

采用改进的酚-溴化氰法合成了酚醛型氰酸酯单体树脂，并用红外、凝胶实验及热失重分析(TGA)对其进行了结构和性能的表征。

3·Objective To compare the biochemical and immunological characteristics of pneumococcus type 1 conjugate vaccine prepared by cyanogen bromide activation and amine reduction.

目的对两种方法制备1型肺炎球菌荚膜多糖-蛋白结合疫苗的生化及免疫学特性进行比较。