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- METHODS:The purified polysaccharides is determined by colourimetry with sulfuric acid phenol as colourimetric reagent. 结果和结论:测得多糖的含量为65。
- Study on determating polysaccharide of Sterculia Scaphigera herb tea using phenol - sulfuric acid method. 苯酚-硫酸法测定胖大海凉茶中多糖的研究。
- Title： Study on determating polysaccharide of Sterculia Scaphigera herb tea using phenol - sulfuric acid method. 关键词：苯酚-硫酸法;多糖测定;胖大海/中草药
- Most sulfuric acid is made by the contact process. 大多数的硫酸是用接触法制造的。
- Poplar (Populus spp.) wood meal was liquefied by phenol in the presence of sulfuric acid as a catalyst. 在硫酸催化作用下,用苯酚对中国人工林杨树木粉进行液化。
- Methods: determined by phenol - sulfuric acid method and anthrone-sulfuric acid method.Compared the stability, repeatability, and recovery of the two methods. 方法:采用苯酚-硫酸法及蒽酮-硫酸法测定龙胆根中多糖的含量,并且对两种测定方法的稳定性、重现性、回收率进行了比较。
- A phenol sulfuric acid method for determination of soluble carbohydrates in seawater bittern was established,and the optimal conditions of this method were studied. 研究确定了苯酚-硫酸法测定海水苦卤样品中可溶性糖的最佳实验条件。
- It is found that the first derivative spectrometric value of polysaccharide phenol sulfuric acid reaction system is proportional to the content of polysaccharides. 研究发现多糖 -苯酚 -硫酸显色反应体系的一阶导数光谱值与多糖含量成正比 ,据此建立了苯酚 -硫酸显色导数光谱分析多糖的方法。
- Chlorination is carried out with Nhaloamines and sulfuric acid. 氯化是用N-卤胺和硫酸。
- A substance, such as sulfuric acid, that removes water. 脱水物质脱去水分的一种物质，如硫酸
- A corrosive solution of sulfur trioxide in sulfuric acid. 发烟硫酸含三氧化硫酸的一种腐蚀性溶液
- Conclusion:The sulfuric acid anthrone method is reasonable. 结论:该法可作为桑叶中多糖的含量测定方法。
- The results of the common acid phenol extraction method show that the RNA isolate was contaminated by a small amount of genomic DNA. 目前提取总RNA普遍使用的是酸苯酚萃取法（或称硫氰酸胍法）。
- The nitrile (II) (28 g) was mixed with 26 ml of concentrated sulfuric acid. 将28克腈化物(II)与26毫升浓硫酸进行混合。
- And the purify of the total RNA by Heated Acid Phenol method is high. the A260/A280 is 1.917 and A260/A230 is 2.034.It can see three clear bands on electrophoresis. 而且采用热酸性酚法得到的总RNA纯度较高，其A_(260)/A_(280)可达1.;917、A_(260)/A_(230)可达2
- The nitrile (II) (28 g) was mixed with 26 ml.of concentrated sulfuric acid. 将28克腈化物(II)与26毫升浓硫酸进行混合。
- Muriatic Acid and cocaine are natural ingredients as well. So is sulfuric acid. 盐酸和古柯碱都也是天然成分，所以硫酸也是...
- Two processes with concentrated sulfuric acid recently appeared are reviewed. 对新近出现的两个浓硫酸水解工艺进行述评。
- Estazolam reacts with sulfuric acid to form an intense fluorescent substance. 本文提出了硫酸颜色反应用于艾司唑仑的荧光测定新方法。
- The reaction of magenta and nitrite in sulfuric acid m ed ium was studied. 据此建立了一个简单、快速、选择性好的测定亚硝酸盐氮的新方法。
