羟基

Any of various alcohols containing two hydroxyl groups.

任何含有除自身的羟基外其他羟基的酸。

Strong acids, such as sulfuric acid, hampered from the occurrence of the phenol hydroxylation.

过强的酸，如硫酸、硝酸和盐酸，对苯酚羟基化反应造成危害，使羟基化反应不能发生。

. Hydroxylated vitamin D-3 is then transported to the kidney, where a second hydroxylation occurs, and 1,252 vitamin D-3 is formed.

羟基维生素D - 3，然后运到肾脏，在第二个羟基发生，1，252的维生素D - 3形成。

Therefore it is very necessary and of great importance in environmental protection and economy to study the industrially production method of 3-hydroxybutyric acid.

生物降解塑料的开发是解决"白色污染"的有效途径，3-羟基丁酸是制备生物降解塑料的重要原料之一，且目前尚无规模化的工业生产，故研究3-羟基丁酸的工业化合成方法具有重要的环境意义和经济意义。

The biocompatibility of poly(3-hydroxybutyrate-co-hydroxyocatanoate), a new biodegradable co-polymer scaffold, was evaluated with a series of tests, including cytotoxicity test, acute systemic toxicity test, hemolysis test, pyrogen test, genetic toxicity test, intracutaneous stimulation test and subcutaneous implantation test.

文章选用细胞毒性实验、急性全身毒性实验、溶血实验、热源实验、皮内刺激实验、遗传毒性实验和皮下植入实验等7个生物相容性实验对生物可降解支架材料羟基丁酸与羟基辛酸共聚体的生物相容性进行评价。

Hydroxy-2,3-dihydro-4-quinolone is synthesized by the basic material of 4-nitrochloro-benzene. It has investigated the routes, conditions and purifies methods in this paper, which provides bases to lucubration and industrialization. This study belongs to the field of medical intermediates.

本文以4-硝基氯苯和丙烯酸为基础原料合成6-羟基-2，3-二氢-4-喹啉酮，并对6-羟基-2，3-二氢-4-喹啉酮的合成条件和纯化方法进行了实验研究，为后续的深入研究和工业化生产提供依据。

OBJECTIVE: This study is designed to investigate the feasibility of poly (hydroxybutyrate-hydroxyvalerate) membrane for guiding bone regeneration.

目的： 探讨聚羟基丁酸/羟基戊酸共聚酯构建引导骨组织再生膜的可行性。

Silicon phthalocyanine dihydroxide was prepared from silicon phthalocyanine dichloride through two methods. The first was alkali treating that meaned silicon phthalocyanine dihydroxide was treated in the ethanol solution containing sodium methylate .The second was acid treating meaned precipitating its solution in concentrated sulfuric acid into ice water. The product yield of the second method was 77.0％, which was higher than the method of alkali treating.

此外将合成的二氯酞菁硅采用两种方法转化为二羟基酞菁硅，第一种方法是碱处理法即将二氯酞菁硅在甲醇钠的乙醇溶液中回流得到，最高收率为53％第二种方法是酸处理法即采用二氯酞菁硅的硫酸溶液在冰水析出的方法转化为二羟基酞菁硅，其中酸溶析出法收率为77.0％。

The basic structural motive of alkali lignin is similar with phenol, containing phenol-carbonyl, alcohol-carbonyl, metonym and other active groups, and it can set off a reaction of carbonyl modification.

碱木素基本结构单元分子类似于苯酚，含有酚羟基，醇羟基，甲氧基等活性基团，可以发生羟甲基化等改性反应。

Blending PHB with the random copolymer poly (3-hydroxybutyrate-co-3-hydroxyhexanoate) made use of the moldability of the former and the toughness of the latter, which provided an effective method for PHA modification.

提出了PHB和聚（3—羟基丁酸酯—共聚—3—羟基己酸酯）共混的PHA改性方法，同时兼顾了材料的韧性和加工成型性。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。