The server is under maintenance between 08:00 to 12:00 (GMT+08:00), and please visit later.
We apologize for any inconvenience caused
Login
|
Sign Up
|
Oriprobe Inc.
|
Feed
Home
Journals
Order
TOC Alerts
Subscription
Products & Services
Pricing
FAQ
About
Journal Articles
Laws/Policies/Regulations
Companies/Products
Title, abstract, keywords:
Combined Search
Advanced Search
Pay per View through On Demand Search
Package:
ALL
Astro-Earth Science
Agriculture
Physics
Mathematics
Arts & Humanities
Medline Collection
Health/Medicine/Biology
Chemistry/Chemical Engineering
English Journals
Traditional Chinese Medicine
NPC CPPCC Journals
China Defense and Military Sciences
Author:
Journal / Book Title:
Year:
Volume:
Issue:
Extraction of the Active Constituent Shikonin from Radices Lithospermi
Author(s):
YANG Xiaodi
,
LU Feng
,
HUANG Meichong
,
XU Ying
Pages:
67
-
70
Year:
2002
Issue:
4
Journal:
JOURNAL OF SHANTOU UNIVERSITY (NATURAL SCIENCE EDITION)
Keyword:
紫草
;
提取
;
有效成分
;
Abstract:
初步探讨紫草中紫草素及其衍生物的提取方法.将紫草加入95%乙醇和石油醚分别制作10个样品,取浸取时间不同的样品,分别采用直接提取和索氏提取法过滤定容,在520nm波长处测定吸光度,结果表明紫草素及其衍生物在95%乙醇中溶解量较在石油醚中大,索氏提取法比直接提取法的提取效率高.
Citations
Searching Exception
Related Articles
loading...