大戟脂药材中四环三萜类成分大戟二烯醇、大戟醇的含量测定及提取工艺优化 点击下载
论文标题: 大戟脂药材中四环三萜类成分大戟二烯醇、大戟醇的含量测定及提取工艺优化
英文标题:
中文摘要: 目的:建立同时测定大戟脂药材中大戟二烯醇和大戟醇含量的方法,并优化其提取工艺。方法:采用高效液相色谱法。色谱柱为AgilentZORBAXEclipsePlusC8,流动相为乙腈-水(90∶10,V/V),流速为1.0mL/min,检测波长为210nm,柱温为30℃,进样量为10μL。以大戟二烯醇、大戟醇含量、出膏率为评价指标进行综合评分,以乙醇体积分数、提取时间、溶剂用量为考察因素,采用L(934)正交试验优化其提取工艺并进行验证。结果:大戟二烯醇、大戟醇检测质量浓度的线性范围分别为0.0304~1.216mg/mL(r=0.9996)、0.01~0.4mg/mL(r=0.9999);精密度、稳定性(24h)、重复性试验的RSD均小于2%,平均加样回收率分别为100.46%(RSD=1.03%,n=6)、99.36%(RSD=0.91%,n=6)。最优提取工艺为40mL的95%乙醇回流提取1h。经3次试验验证结果显示,大戟二烯醇的平均含量为94.43mg/g(RSD=0.92%,n=3),大戟醇的平均含量为25.42mg/g(RSD=0.98%,n=3),平均出膏率为51.42%,(RSD=1.95%,n=3),平均综合评分为98.87(RSD=0.92%,n=3)。结论:所建含量测定方法简便、准确,重复性好,可用于大戟脂的质量控制;优化所得提取工艺稳定、可行。
英文摘要: OBJECTIVE:To establish a method for the simultaneous determination of euphol and euphorbol in Euphorbium resinifera,and to optimize the extraction technology. METHODS :HPLC method was adopted. The determination was performed on Agilent ZORBAX Eclipse Plus C 8 column with mobile phase consisted of acetonitrile-water (90∶10,V/V)at the flow rate of 1.0 mL/min. The detection wavelength was set at 210 nm,and column temperature was 30 ℃. The sample size was 10 μL. Using the contents of euphol and euphorbol ,yield of the extract as evaluation index ,comprehensive score was conducted. The extraction technology was optimized by L (9 34)orthogonal tests ,with ethanol volume fraction ,extraction time and solvent dosage as factors. RESULTS:The linear ranges of euphol and euphorbol were 0.030 4-1.216 mg/mL(r=0.999 6)and 0.01-0.4 mg/mL(r=0.999 9), respectively. RSDs of precision ,stability(24 h)and producibility tests were all lower than 2%. Average recoveries were 100.46% (RSD=1.03%,n=6)and 99.36%(RSD=0.91%,n=6). The optimized technology was extracting with 40 mL 95% ethanol for 1 h. After 3 times of validation tests showed that average content of euphol was 94.43 mg/g(RSD=0.92%,n=3),and that of euphorbol was 25.42 mg/g(RSD=0.98%,n=3);average yield of the extract was 51.42%(RSD=1.95%,n=3),and average comprehensive score was 98.87(RSD=0.92%,n=3). CONCLUSIONS :Established method is simple ,accurate and reproducible , which can be used for the quality control of E. resinifera . The optimized extraction technology is simple and stable.
期刊: 2021年第32卷第06期
作者: 刘婧,李晨阳,赵军,顾政一
英文作者: LIU Jing,LI Chenyang ,ZHAO Jun,GU Zhengyi
关键字: 大戟脂;大戟二烯醇;大戟醇;高效液相色谱法;含量测定;提取工艺优化
KEYWORDS: Euphorbium resinifera ;Euphol;Euphorbol;HPLC;Content determination ;Extraction technolohy optimization
总下载数: 81次
本日下载数: 2次
本月下载数: 81次
文件大小: 619.60Kb

* 注:未经本站明确许可,任何网站不得非法盗链资源下载连接及抄袭本站原创内容资源!在此感谢您的支持与合作!