紫外分光光度法测定红枣中总糖的含量  

Determination of Total Sugar in Jujuba by Ultraviolet Spectrophotometry

作　　者：葛亮[1] 江钰[2] 侯旭杰[3] 王东东[1] 张浩科[1] 高丽[1] 

机构地区：[1]新疆医科大学中医学院,乌鲁木齐市新医路393号830011 [2]新疆医科大学附属中医医院,乌鲁木齐市黄河路116号830000 [3]塔里木大学农业工程学院,新疆阿拉尔市843300

出　　处：《光谱实验室》2009年第4期893-895,共3页Chinese Journal of Spectroscopy Laboratory

摘　　要：采用浓盐酸使红枣中总糖发生脱水反应,紫外分光光度法在284nm处直接测定红枣中总糖的吸光度。在0.78—2.34mg/mL的范围内总糖的浓度与吸光度呈现良好的线性关系(r=0.9990,n=5),平均回收率为99.8%(RSD=2.5%,n=6)。本法简单,明确,可用于红枣中总糖的含量测定。The total sugar was detected at 284nm with UV Spectrophotometry.The calibration curve for total sugar was linear within the range of 0.78—2.34mg/mL（r=0.9990,n=5）,the average recovery was 99.8%（RSD=2.5%,n=6）.The method was simple,convenient and accurate for determination of total sugar in jujuba.

关 键 词：红枣 总糖 紫外分光光度法 

分 类 号：O657.32[理学—分析化学]