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METHODS The components of emodin, resveratrol and polydatin were used as the marker, the optimum uniform-design was used to optimize the extraction procedure.
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方法:以虎杖中主要有效成分大黄素,白藜芦醇,白藜芦醇苷以及浸膏得率为指标,以均匀设计实验考察了乙醇浓度、溶媒量、提取时间、提取次数等对效果的影响。 |
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METHODS The content of β-glucan determined by phenol-sulfuric acid method, Congo red method, two enzymes method and modified two enzymes method, respectively and compare these four methods.
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方法分别采用苯酚-硫酸法、刚果红法、双酶法和改良双酶法测定β-葡聚糖含量,并比较结果。 |
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METHODS The essential oil was extracted by steam distillation and analyzed by GC-MS technique.
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方法用水蒸气蒸馏法提取白鲜皮挥发油并用气相色谱-质谱技术分析。 |
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METHODS The original plant identification, morphological, microscopic indentification and thin layer chromatography (TLC) were adopted.
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方法采用原植物、性状、显微、薄层鉴定等方法。 |
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METHODS The title compound was synthesized via 2 steps starting from phenylboronic acid and ethyl p-bromophenyalacetate.
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方法以苯硼酸和对溴苯乙酸乙酯为起始原料,经偶联、皂化二步反应得目标化合物。 |
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METHODS Three-step extract procedures were used and the solanesol contents were measured by Coulometric titration method.
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方法采用渗滤、析晶、重结晶三步法提取分离,库仑滴定法测定含量。 |
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METHODS To investigate the suspending effect of the following hydrophilic polymer: HPMC, CMC-Na, PVP K90, Xanthan gum and MC.
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方法考察常用的羟丙基甲基纤维素、羧甲基纤维素钠、聚维酮、黄原胶、甲基纤维素等辅料对干混悬剂的影响。 |
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METHODS To screen extracts of plants at random with CPE.
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方法采用CPE法对多种植物提取物进行随机筛选。 |
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METHODS Using assisted microwave irradiation to synthesize scopoletin.
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方法利用微波合成东莨菪素。 |
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METHODS Using literature textual criticism, macroscopic and physical and chemical identification methods to identify Halloysitum rubrum.
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方法采用文献考证、性状鉴别和理化鉴别。 |
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METHODS We performed a double-blind, randomized comparison of three fluids for initial resuscitation of Vietnamese children with dengue shock syndrome.
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方法我们对用于越南登革休克综合征儿童初始复苏的三种液体进行了双盲随机比较。 |