羟基

Annonaceous acetogenins are natural compoundsisolated so far only from Annonaceae and showed potential as anticancer,immunosuppressive, and pesticidal agents.

Tonkinecin是一个具C5羟基37个碳的单四氢呋喃环番荔枝内酯化合物，它对人类肿瘤细胞如肝细胞瘤、胃癌等强烈细胞毒性。

Objective To observe the effect of secondary intraorbital implantation of hydroxyapatitesphere in anophthalmos.

目的 观察眼球摘除后Ⅱ期眶内植入羟基磷灰石义眼台的疗效。

Hydroxyapatite has been widely used in anophthalmus reconstruction, orbital reconstruction, artificial cornea transplant and drug carrier.

羟基磷灰石在眼窝重建、眼眶重建、人工角膜移植及药物载体方面已得到广泛的应用。

C. Antioxidizer and light stabilizer: the antioxidizer has many varieties, including antioxidizer 3114, BHT, antioxidizer 1010, antioxidizer 1076, Tiunin 770, TPP, TNP; the additive amount is usually below 20mg/kg.

c、抗氧剂和光稳定剂：抗氧剂的种类很多，抗氧剂3114，BHT，抗氧剂1010，抗氧剂1076，Tiunvin 770，TPP，TNP，添加量一般在20mg/kg 以下。2－羟基－4－正丁锌氧基二苯甲酮为紫外光吸收剂。

Go into discovers , air is hit by a positive ion to be mineral ion , nitrogen ion etc. much, the anion is oxygen ion and aquation OH group ion etc.

研究发现，空气中正离子多为矿物离子、氮离子等，负离子多为氧离子和水合羟基离子等。

This paper proposes a method for the determination of 4-hydroxy-3-nitro-benzenearsonic acid and arsanilic acid in the nitration reaction product of arsanilic acid by ion-pair chromatography.

本文提出一种用于测定对氨基苯胂酸硝化反应产物中4-羟基-3-硝基苯胂酸及对氨基苯胂酸含量的离子对色谱法，选择甲醇：水=25：75作为流动相，0。

A high performance liquid chromatography method with UV detection has been established for simultaneous determination of four kinds of organic arsenic in pig feeds,including arsanilic acid,roxarsone,nitarsone and...

建立高效液相色谱法对猪饲料中4种有机胂类药物[对氨基苯胂酸、3-硝基-4-羟基苯胂酸、4-硝基硝苯胂酸、对脲基苯胂酸]的残留进行了检测。

Objective To study antioxidation ofDi-(3β-hydroxyandrost-5-en-17-one) ester, a new compound which was structure derivated from active substance from Asterias amurensis.

目的 以兔和大鼠心肌及肝组织匀浆为材料，研究一种从多棘海盘车中提取得到的活性物质经结构改造和修饰得到的丁二酸二-（3β-羟基雄甾5-烯-17-酮）酯新化合物抗脂质过氧化作用。

The calculation result of molecular dynamics simulation was received using the minimization in molecular mechanics method, which indicates that the optimized configuration is one-to-one hydrogen bonds of the double chains of atactic PVA .

通过分子动态模拟，对所使用的两个具有无规结构的聚乙烯醇链进行能量优化，结果表明，当两个聚乙烯醇分子中的羟基形成了一对一的氢键时，能量最低，体系最稳定。

After cultivating in liquid medium for 5 days, an extra cellularβ-mannanase from Athelia rolfsii strain CBS191.62 was purified 15.1-fold toelectrophoretic homogeneity by ammonium sulfate precipitation, DEAESepharose Fast Flow chromatography, Hydroxylapatite chromatography andrefrigeration crystal.

产β-甘露聚糖酶的Athelia rolfsii菌株CBS 191.62，发酵培养5d，发酵液离心去菌体，上清经硫酸铵沉淀，琼脂糖凝胶层析、羟基磷灰石层析和冷冻干燥结晶等步骤，β-甘露聚糖酶的比活提高了15.1倍，获得凝胶电泳均一的蛋白样品。

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。