水醇的
- 与 水醇的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Meanwhile the influence of the amount of catalyst alkali ethylate and absolute alcohol,the temperature and time of reaction on interesterification was studied.
利用正交试验研究了酯交换法制备卤虾油脂肪酸乙酯的工艺,分析了催化剂用量、反应温度、反应时间、无水乙醇用量等对醇解率的影响。
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The factors influencing on the reaction such as dosage of catalyst, molar ratio of acid to alcohol and reaction time were investigated.
考察了催化剂用量、酸醇物质的量比、带水剂用量以及反应时间等因素对产率的影响。
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This separation of ethanol-water azeotrope using glycol as solvent is analyzed. The result shows that when the system is operated twice,the output is the greatest and the consumption is the least.
以乙二醇作溶剂分离乙醇-水物系的实验结果表明,当间歇操作次数为2时,产品采出率最大,单位产品消耗的新鲜溶剂量最少。
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We also developed this extracting method for NO detection in aqueous phase by using another organic solvent butanol.
我们还以正丁醇为溶剂,进一步发展了这种有机溶剂提取的方法,使之适用于水相中NO的检测。
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This method was better than the traditional extracting way using butanol saturated of water.It was simple and accurate to determine the quantit...
结论用固相萃取-HPLC-ELSD法测定黄芪药材中黄芪甲苷的含量,较传统的水饱和正丁醇萃取法更简便,且重复性好。
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Urethane adduct was synthesized from decarboxylated cashew nut shell liquid,hexamethylenediisocynate and polyethylglycol,which was then reacted with melamineformaldehyde resin to form aqueous coating material.
采用天然植物油、己二异氰酸酯和聚乙二醇在较温和的条件下反应,制得了水溶性的氨基甲酸酯加成物,以此和低醚化度甲醚化三聚氰氨甲醚甲醛树脂制备了水性涂料。
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The technique and economic comparison between it and the technique of preparing hydrogen gas by water electrolyzation was carried out.
张玫概要阐述了甲醇裂解制氢的原理及其在山梨醇生产中的应用,并与水电解制氢进行了技术经济比较。
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Object: The antimicrobial effects of the water, 60% alcohol, 90% alcohol extract and petroleum ether, ethyl acetate, n-butanol components from Pomegranate rind against 3 kind of pathogenesis bacterial and 14 kind of epiphyte were accomplished.
目的:对石榴皮的水、60%乙醇、90%乙醇提取物以及石油醚、乙酸乙酯、正丁醇萃取物对3种细菌和14种真菌的体外抗菌试验进行了研究。
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An introduction of the characteristic,potential application fields of PVA fila ments is given.
介绍了聚乙烯醇水溶长丝的特性、应用领域,及其作用原理、使用方法和使用中的注意事
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Hydrastine(97.7%) was obtained with extracted rate 65%by extracting the Goldenseal with mixed Solvent;Berberine hydrochloride (99.9%) was obtained by adding hydrochloride acid to alcohol (alcohol∶H 2O=1∶1) solution of the extract and Hydrastine (99.5%) was gained by CLC method with the yield 1%.
原药材用混合溶剂直接提取分离,可得到含北美黄连碱 97.7%的结晶体,提取率达 6 5%;提取物经醇水溶解、酸化,可直接获得小檗碱盐酸盐结晶,纯度达到 99.9%;用柱色谱法,可得到 99.5%的北美黄连碱,收率约 1
- 推荐网络例句
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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.
从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。
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The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.
集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐
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The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.
血精的原因很,以良性病变为主。