摘要
采用紫外分光光度法测定核桃楸皮中槲皮素含量。超声提取槲皮素,转无水乙醇溶解,25℃、370nm法测定吸光度。线性范围0.0464~0.232 mg/mL,R=0.9984,核桃楸皮中槲皮素的平均含量为0.28%。
Objective: Determination of quercetin of cortex juglandis mandshuricae in Mudanjiang. Methods: Extracting quercetin by ultrasound wave at 370nm on 25℃. The Extraction dissolve in absolute alcohol. Determination of quercetin with UV. Results : The method was linear within the range of 0. 0464 -0. 232 mg/mL, R=0. 9984. Average contents are 0. 28%.
出处
《实验室科学》
2012年第1期88-90,共3页
Laboratory Science
基金
黑龙江省自然科学基金项目(项目编号:L:D200983)
关键词
核桃楸皮
槲皮素
质量测定
紫外分光光度法
cortex juglandis mandshuricae
quercetin
quantitative determination
ultraviolet spectrophotometry