本文叙述了盐酸吡啶的制备及精制方法。
The preparation and purification methods of pyridine hydrochloride were discoursed in the paper.
本文研究了聚丙二醇的合成和精制方法。
The preparation and purification process of polypropylene glycol was studied.
方法：采用了醇沉法和絮凝法两种精制方法。
Methods: Flocculating method and alcohol precipitation meth od were used.
结论树脂d 301可用作栀子苷的精制方法。
通过研究获得了一种新型的茄尼醇纯化精制方法。
A new method of purifying and refining solanesol is obtained through the present study.
本发明为化学合成领域的盐酸二甲双胍精制方法。
The invention provides a method for refining metformin hydrochloride in the technical field of chemical synthesis.
通过该精制方法，能够降低硫化锂中含有的杂质。
Impurities contained in the lithium sulfide can be reduced by this purifying method.
本文对栀子红的制备条件与精制方法进行了初步研究。
The methods of preparation and refining of Gardenia Red made from Geniposide were studied.
前言：目的建立中药淫羊藿总黄酮的精制方法和质量控制标准。
Objective: To set up a method and a standard of quality for extracting and purifying flavones from Herba Epimedii.
方法：运用天然药物化学的分离精制方法进行单体化合物的分离。
Method: the single constituents were separated by the methods of phytochemistry.
精制方法主要包括专一性溶剂法、酸碱法、酶水解法和柱层析法等。
Specific solvent separation, acid and alkali treatment, enzymatic hydrolysis and column chromatography are the main methods to be used in the refinement of curcumin.
总结了磷化氢的精制方法，主要有吸附法、低温精馏法和膜分离法等。
The purification methods of phosphine include adsorption method, low temperature distillation method and membrane separation method etc.
综述了显色剂二羟基二苯砜的合成及精制方法、不同合成工艺的优缺点。
The synthesis and purification methods of dihydroxydiphenylsulfone as a developer were reviewed with 22 references, the advantages and disadvantages of different technologies were discussed.
通过对炭窑、炭材、燃料、收集工艺、储存条件和精制方法等的分析研究。
After analysed study on charcoal kiln, material, fuel, collection technology, storage condition and making method.
研究表明，以焦化汽柴油为原料，通过加氢精制方法可以得到合格的喷气燃料；
The result showed that the qualified jet fuel was obtained by the hydrofining process.
本发明丙酸胍的精制方法精制收率高，溶媒可回收套用，并大大减少了废水量。
The refining method of the propionic acid guanidine of the invention has high refining yield and menstruum can be recovered and applied, thereby greatly reducing waste water quantity.
本文采用新的成品精制方法，解决了成品拖尾峰问题，确定了成品精制的最佳工艺。
The recovered hydrogenate has more impurity, so a new purification method was usedwhichsettl-ed the tail peak problem in finished Doxycycline Hyclate. The optimal purification condition is obtained.
本文采用固体酸为催化剂，研究了乙酸异戊酯的合成及精制方法，并给出了适宜的实验操作条件．。
The synthesis and refinement method of isoamyl acetate with solid acid catalyst are studied. The proper operating conditions of the experiment are given.
列举了溶剂萃取法、微波法和超临界CO2流体萃取等典型的提取精制方法，并简要介绍了辣椒碱的应用前景。
Some typical methods are enumerated such as solvent extraction, microwave and supercritical CO2 fluid extraction. furthermore, the perspective of its utilization is briefly introduced.
速溶豆乳晶，是以大豆为主要原料，以白砂糖、淀粉糖浆为辅料，经科学方法精制而成的—种速溶性固体饮料。
The instant soybean milk crystal is an instant solid drink which is made with soybean as the main ingredient, sugar and starch syrup as the auxiliary ingredient through scientific method.
研究了从火炬树果穗中提取红色素的方法，并对其进行精制。
A method of extracting and purification natural red pigment from ear of torch tree is proposed.
方法通过均匀设计筛选合理的提取精制工艺。
METHODS To design the process of extraction and refinement screened reasonably.
同时，从种牛选择，冻精制作与保存、选配方法、建立冷冻胚胎库等方面提出了具体技术措施。
Meantime, the concrete measures were elicited for bull selection, making and preservation of frozen semen, mating methods and frozen embryo pool establishment etc.
结论染料配基亲和层析可作为面包酵母乙醇脱氢酶和葡萄糖-6-磷酸脱氢酶的精制纯化方法。
Conclusion Dye affinity chromatography can be used as a refine purification method for purification of EDH and G-6-PDH from baker's yeast.
论述了焦化粗苯加氢精制的工艺方法及其催化体系，并简单介绍了国内加氢工艺的应用。
The coking crude benzol hydrogenation process and its catalytic system are discussed, and the domestic application of the hydrogenation process is introduced briefly.
熔融结晶是一种分离精制有机物的物理方法。
Melt crystallization is a physical method for separating or refining organic compounds.
论述了具有焦糖脱色能力的颗粒活性炭(GAC)在柠檬酸溶液脱色精制应用中的再生处理方法。
The regenerating method of granular activated carbon (GAC) capable of caramel decoloration used for decolorizing and refining citric acid solution was investigated.
论述了具有焦糖脱色能力的颗粒活性炭(GAC)在柠檬酸溶液脱色精制应用中的再生处理方法。
The regenerating method of granular activated carbon (GAC) capable of caramel decoloration used for decolorizing and refining citric acid solution was investigated.
应用推荐