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- To determine the content of gallic acid in fruit of Trapa manshurica by HPLC. 用高效液相色谱法测定菱角药材中没食子酸的含量。
- Objective To determine the content of gallic acid in Acalypha australis L. 目的测定铁苋菜中没食子酸的含量。
- Content of gallic acid in fruit of Trapa manshurica is 0.08%, the average recovery is98.3% and RSD is 1.89%. 菱角中没食子酸含量为0.;08%25;平均回收率为98
- Objective: To determine the content of gallic acid in Relinqing granules and Relinqing capsules by HPCE. 目的:应用高效毛细管电泳法测定热淋清颗粒及热淋清胶囊中没食子酸的含量。
- Hydrolysable tannin may be degraded to glucose,gallic acid,ellagic acid and valonia acid in the acid condition. 水解类植物鞣质在酸性条件下能降解,其降解产物可起到还原、蒙囿以及与金属盐络合的作用。
- When I saw this picture, my nose gallic acid, my eye has been red, the tear came out ......These are the child! 当我看到这张照片，我的鼻子酸了，我的眼睛红了，眼泪出来了......这些都是孩子啊！
- Tannase hydrolyses the ester bonds and depside bonds in gallic acid tannins to release gallic acid and glucose. 摘要单宁酶可水解没食子酸单宁中的酯键和缩酚羧键，生成没食子酸和葡萄糖。
- Tannins of the first type which are found in tea generally yield glucose and gallic acid when they are hydrolyzed. 第一种丹宁酸发现于茶叶中，通常将它们水解时会产生葡萄糖和没食子酸。
- Independently, volanea extract and gallic acid are modified by thermal heat treatment and microwave irradiation. 在改性方案相同前提下,分别在常规加热搅拌和微波加热条件下对橡椀栲胶进行接枝改性。
- By the method,gallic acid could be obtained at a high purity of 97% just through two step chromatography. 经过一次逆流色谱分离,可以得到纯度在70%25以上的没食子酸,第二次分离即可使其纯度达到97%25以上。
- Gallic acid, the decomposd product of tannin, was in bright yellow and green color, showing a strong specificity. 亚硝酸钠试剂显色，未见报道，对鞣质的分解产物没食子酸独显亮黄绿色，专属性强。
- From Chinese gall nut as raw material some derivates of gallic acid were prepared as antioxidant for edible oil. 以我国特有的天然资源五倍子为原料,研制了几种没食子酸衍生物作为油脂抗氧化剂。
- Method The contents of Galla Halepensis were determined by TLC, and Gallic Acid was determined by HPLC. 方法用薄层色谱法鉴别处方中五倍子的主要成分,用高效液相色谱法测定没食子酸的含量。
- Using the phosphotungstic acid immobilized on active carbon as catalyst, the iso-amyl gallate was synthesized directly by esterifying isoamyl alcohol and gallic acid. 摘要以活性炭固载磷钨酸作为催化剂，用没食子酸与异戊醇直接酯化合成了没食子酸异戊酯。
- Containing tannin, gallic acid, pyro-gallic acid, nutgall has many kinds of uses in the industry construction and person's life. 五倍子含有单宁酸、没食子酸、焦性没食子酸，在工业建设和人民生活中具有广泛的用途。
- Method: The determination was effected by HPLC condition an detection wavelength of 254nm for vitamin c and 271nm for gallic acid. 方法:采用HPLC法,Vc检测波长254nm,没食子酸检测波长271nm。
- Gallic acid,catechin and epicatechin of three monomeric phenols was separated well,the improved HPLC method was full of accuracy and precisio... 经测定;葡萄籽超微粉中;多酚含量10.;9%25(以儿茶素计);三种单体的总量为1
- The n-octyl gallate was prepared by esterification of alcohol and gallic acid in catalysis system of dodecyl benzene sulfonic acid. 以十二烷基苯磺酸为催化剂,酸醇直接酯化合成没食子酸正辛酯。
- Iso-army gallate was synthesized by esterification of gallic acid with iso-army alcohol catalyzed by 4-methylbenzene-sulfonle acid. 以没食子酸和异戊醇为原料,对甲苯磺酸为催化剂,合成了没食子酸异戊酯。
- A new functional polymer material, namely galloylcellulose, was synthesized with gallic acid as functional group, and cellulose as molecular skeleton. 研究了以没食子酰基为功能性基团、纤维素为分子骨架的功能高分子材料的合成。
