为研究国产伤寒Vi多糖菌苗的稳定性 ,将保存三年以上的伤寒Vi多糖菌苗成品采用自然风干和 37℃恒温干燥两种方法浓缩后 ,用CL 4B柱层析分析系统 ,测定KD在 0 2 5前多糖的回收率 ,结果均大于 5 0 %。同时对保存三年以上的制品按规程进行了全检 ,结果均符合规程要求。表明国产菌苗放置三年依然合格。 In order to study the stability of domestic bacteriosis Vi polysaccharide vaccine, the finished products of the febrile Vi polysaccharide vaccine stored for more than three years were concentrated by natural air-drying and constant temperature drying at 37 ℃, and then analyzed by CL 4B column chromatography system to determine KD The recoveries of polysaccharides before 0 2 5 were all higher than 50%. At the same time to preserve more than three years of products according to the rules of the whole seizure, the results are in line with the rules and requirements. That the domestic bacterin still placed three years pass.