摘要
本文报导了刺梨中胆碱含量的测定方法:1:5的硝酸水深液提取,5％雷氏盐——甲醇溶液沉淀,正丙醇洗涤,丙酮溶解,在波长526nm测定吸光度。此法添加回收率在94％以上,测定结果为91.2—152.1mg/100g(干基)
Using the methed with nitric acid—water( 1:5,V) extraction,5％(w/v) Reinecke's salt—methanol preciptation, lactic alcohol wash, alatone dissolving and at warelength 526nm measure absor-peion spectral intensity, we determined contet renge of the choline in dried Rosa roxburghii Tratt at 91.2—152.1mg/100g, added pure choline to samples recovery rate 94.0—97.5％.
关键词
刺梨
胆碱
含量
测定
回收率
Bosa roxburghii Tratt
choline
determine
recovery rate
