三羟基的

The problems which existed in the D-p-hydroxyphenylglycine concentrative crystallization process are analyzed.

分析了对羟基左旋苯甘氨酸母液浓缩结晶过程存在的问题，介绍了三效热泵蒸发结晶工艺。

Cytophaga sp was selected for heparinase production because it was more productive. Three heparinases, named HⅠ, HⅡ and H Ⅲ were purified from the crude cell extract by means of batch DEAE-Cellulose negative adsorption, Hydroxylaptide adsorption and releasing, SP-Sepharose cation exchange chromatography, Source 30S cation exchange chromatography, Poros 20HS cation exchange perfusion chromatography and Sephacryl S200HR gel permeation chromatography.

利用超声破碎、DEAE-纤维素反吸附去杂、羟基磷灰石批处理吸附层析、SP-Sepharose离子交换层析、Source 30S离子交换层析、Porous20HS离子交换灌注层析及Sephacryl S200HR凝胶排阻层析，从噬纤维菌中纯化出三种新的肝素酶。

College of Chemistry and Molecular Sciences,Wuhan University,Wuhan 430072A novel diselenide porphyrins dimmers was synthesized using 5(4- hydroxylphenyl)-10,15,20- triphenyl porphyrin and selenium as raw materials. The structure of the novel porphyrin was confirmed by 1H NMR, IR, UV, and MS.

以5-(4-羟基苯基)-10，15，20-三苯基卟啉和硒粉为原料，合成了新型二硒双卟啉，用紫外可见光谱，红外光谱，核磁共振氢谱（1H NMR），高分辩质谱对目标产物的结构进行了确认。

The OH functionality of the polyether may be controlled by using modifiers such as glycidol, ethylene glycol, water or trimethylol propane

用缩水甘油、乙二醇，水或三羟甲基丙烷等改良剂，可控制聚醚的羟基官能团。

The OH functionality of the polyether may be controlled by using modifiers such as glycidol, ethylene glycol, water, or trimethylol propane

可用缩水甘油，乙二醇，水或三羟甲基丙烷等改良剂，可控制聚醚的羟基官能团。

In ternary system of PGA/POH and HDI isocyanurate, there are twomain reactions: one forms urethane at 30-50℃, the other producesoxazolidone at 140-165℃.

聚丙烯酸环氧丙酯（PGA、聚丙烯酸羟丙酯（POH和HDI三聚体的三元反应体系中，醇羟基与异氰酸酯在30-50℃下反应可生成氨酯，环氧基团与异氰酸酯在140-165℃下反应生成噁唑烷酮。

In Chapter 3, the separation of Fe〓, Co〓, Ni〓, Zn〓, Cu〓 by CE in the presence of imidazole or phenylamine as UV-absorbing background electrolyte and α-hydroxybutyric acid as the complexing agent with indirect UV absorbance was investigated.

在第三章，研究了以咪唑或苯甲胺为背景吸收电解质，α-羟基异丁酸为络合剂，采用毛细管离子电泳间接紫外法测定了镍矿石中Ni，Co，Cu的含量。

Mainly engaged in sodium azide, barium azide, three phosphorus nitride Friday, phenyl isothiocyanate, 1 - phenyl -5 - mercapto-tetrazole, 4 - dimethylamino-pyridine, 2 - mercapto--5 -- methyl-1,3,4 thiadiazole, N-hydroxy phthalimide, anhydrous betaine and betaine hydrochloride, such as fine chemical raw materials and medicine, pesticide intermediates of the development, production and sales.

主要从事叠氮化钠，叠氮化钡，五氮化三磷，异硫氰酸苯酯，1-苯基-5-巯基四氮唑，4-二甲氨基吡啶，2-巯基-5-甲基-1，3，4噻二唑，N-羟基邻苯二甲酰亚胺，无水甜菜碱及甜菜碱盐酸盐等精细化工原料及医药、农药中间体的开发、生产和销售。

Objective To study the effect of Arotinoid Trometamol and 1, 25-dihydroxyvitamin D3 [1, 25-2D3] on RXRα and VDR at the transcriptive level.

目的 探讨芳维A酸氨丁三醇与1，25-二羟基维生素D3[1，25-2D3]单用或联合应用对RXRα及VDR表达的影响。

The histological sections, with HE and Masson's trichromic staining made, to evaluate the effectiveness of repair of bony defect. Results There existed new cartilage and new immature bone tissue in the bone substitute in 4 weeks after operation, as well as mass of cartilageous cells,osteoblasts, collagen tissue and more small vessels were seen.

方法高温法制备出磷酸四钙，然后在模拟体内环境下将其与无水磷酸氢钙发生水化固化反应，合成水泥型羟基磷灰石人工骨，将自制的CPC人工骨植入新西兰兔桡骨大段骨缺损模型中，术后4、8、12、16周取材，采用HE染色和Masson三色染色分析评价骨缺损修复效果。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新