检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:马学琴[1] 许晓雪[1] 王玫[1] 雪婷[1] 张万年[1]
机构地区:[1]宁夏医科大学药学院宁夏医科大学回药现代化工程技术研究中心,宁夏银川750004
出 处:《时珍国医国药》2016年第2期308-311,共4页Lishizhen Medicine and Materia Medica Research
基 金:国家科技支撑计划课题(No.2013BAI11B07);国家自然科学基金(No.81260679);宁夏回族自治区科技攻关项目(No.2012)
摘 要:目的分别采用水蒸气蒸馏法(SD)和超临界CO2萃取法(SFE)提取回药核心方中挥发油和小极性成分,利用气质联用法鉴定分析各成分,比较不同提取方法所得成分种类的差异。方法 Shimadzu QP2010 plus GC-MS条件:Rxi-5Sil MS(30 m×0.25 mm×0.25μm)石英毛细管柱,起始温度50℃,保留1 min,以10℃·min-1升温至120℃维持3 min,以3℃·min-1升温至200℃维持3 min,以5℃·min-1升温至290℃维持10min至完成分析;载气为氦气,柱流量1.0 ml·min-1,分流比25∶1,进样口温度250℃,EI电离源70 e V,离子源温度230℃,扫描范围m/z 35~500。结果 SD法提取挥发油得率为0.85%,共分离鉴定出40个化合物,占挥发油总质量的97.88%;SFE法提取挥发油得率为5.82%,共分离鉴定出54个化合物,占成分总质量的77.85%;结论采用SD法和SFE法提取得到的回药香药核心方的小极性成分在种类上有很大差异,GC-MS可用于鉴定和测定香药小极性成分,为下一步阐明回医香药的活性物质基础提供了实验数据。Objective The volatile components of the Hui formula"He Xin"were extracted by steam distillation extraction( SD)and supercritical CO2 fluid extraction,respectively; and the structures were analyzed and identified by GC- MS. Methods The mass spectrometric conditions were set as follows: Shimadzu QP2010 plus GC- MS,Rxi- 5Sil MS quartz capillary column( 30 m× 0. 25 mm × 0. 25 μm),the starting temperature 50℃,maintained 1 min,heated to 120℃ with 10℃ ·min- 1,maintained 3min,then heated to 200℃ with 3℃ ·min- 1,maintained 3 min,contincied heated to 290℃ with 5℃ ·min- 1,maintained until completion of analysis; helium as the carrier gas,column flow rate 1. 0 m L min- 1,split ration 25: 1,inlet temperature 250℃,EI ionization source 70 e V,ion source temperature 230℃,scan range of m / z 35 ~ 500. Results Yield of volatile oil were 0. 85%and 5. 81% extracted by SD and SFE methods,respectively; and for SD method,40 kinds of compounds were identified,accounted for 97. 88% of total mass of volatile oil; for SFE method,54 kinds of constituents were identified,accounted for 77. 85% of total mass of volatile oil. Conclusion The type of constituents contained in the volatile oil extracted by SD and SFE methods were totally different,and GC- MS could be used to identify the structures and relative content of volatile components,the results of this study could provide experimental basis for development and utilization of Hui medicine.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:3.142.219.125