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
出 处:《中成药》2001年第12期869-871,共3页Chinese Traditional Patent Medicine
摘 要:目的 :采用薄层扫描法对元胡止痛滴丸中延胡索乙素进行含量测定。方法 :样品经适当提取、净化后点于硅胶G薄层板上 ,以甲苯 无水乙醇 (2 0∶2 ,氨蒸气饱和 30min)为展开剂 ,置紫外灯 (2 5 4nm)下定位 ,检测波长为λS=2 80nm ,λR=310nm。结果 :平均回收率为 98.90 % ,RSD =3.10 %。结论 :此方法简单、准确 。Objective: To determine the content of tetrahydropalmatine in Yuanhuzhitong Dropping Pills by TLC scanning. Methods: The extraction solution of the sample was analyzed on silica gel G plate, with toluene anhydrous alcohol (20∶2, saturating for 30 min) as the developing system. The spot was located under UV (at 254nm), then detected by dual wavelength scanning (λ S=280nm,λ R=310nm). Results: The average recovery was 98.90%. RSD was 3.10%. Conclusion: The method is simple, accurate and available for the quality control of Yuanhuzhitong Dropping Pills.
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:216.73.216.52