查询词典 bilirubinic acid

In this paper,firstly a series of acryloxyl derivatives were synthesized from the dehydrogenated abietic acid,a main composition of disproportionated rosin, through acyl chloridation and esterification.The derivatives included the (β-acryloxyl ethyl) esters of dehydrogenated abietie acid,(β-methacryloxyl ethyl) esters of dehydrogenated abietic acid and (β-methacryloxyl propyl)esters of dehydrogenated abietic acid.

论文首先以歧化松香中的主要成分脱氢枞酸为模型化合物，采用酰氯化、酯化手段合成了它的一系列丙烯酰氧基衍生物，包括脱氢枞酸酯、脱氢枞酸(β-甲基丙烯酰氧基乙基)酯和脱氢枞酸(β-甲基丙烯酰氧基丙基)酯。

Kinetics of photo-chlorination of acetic acid to form monochloroacetic acid ;2. The mechanism for chlorinate acetic acid to monochloroacetic acid by using acetic anhydride or sulfur as catalysts respectively was studied.

通过对硫磺和乙酐催化氯化制备氯乙酸反应机理的分析研究，采用硫磺及乙酐复合催化剂，并且对氯化温度、氯化气氛、尾气回收等进行了过程优化，实现了乙酸氯化反应工艺条件的重大突破，使得氯乙酸的收率达到92。

Diluted nitric acid, phosphoric acid, organic acid and medium containing smal amount of sulfuric acid or chlorion

抗病毒中和生物鉴定法进行干扰素中和抗体检测。2。但CO2只适用于强碱性、高酸中和能力的灰渣。

Sodium5sulfoisophthalic acid dimethyl ester was prepared by sulfonation of mC 6H 4 2 with chlorosulphonic acid , treatment of the 5sulfoisophthalic acid with methanol to esterify the -CO 2H groups and separation of the product in the form of sodium salt of sulfonic acid.

研究了由氯磺酸和间苯二甲酸经磺化及酯化反应合成间苯二甲酸二甲酯磺酸钠盐的工艺方法，探讨了投料比、反应温度、催化剂用量和反应时间对产物的影

Glycocholic acid is a kind of glycol-conjugated bile acid which exists in many animals'bile. It is one of main component of bile acid and was synthesized from cholalic acid and glycine in liver.

甘氨胆酸是胆汁酸的主要成分之一，属于结合型胆汁酸，在肝脏中由胆酸和甘氨酸结合而成。

The optimum condition was determined via orthogonal experiments, and the result shows that the technology of bile extraction and purification adopts 10L chromato bar with 3L bile, gel silica as fixed phase, the mixed chloroform and isopropanol as mobile phase, gradient elution with mobile phase (the mobile phase ratio in extraction of cholalic acid and glycocholic acid is 4:1 , and then becomes 3:2 in extraction of glycocholic acid and glycocholic acid), and eluting velocity of 3～5mL/s .

采用正交试验筛选了柱层析最佳条件，以容积为10L的层析柱进行分离纯化，固定相为硅胶，流动相为氯仿和正丁醇混合溶剂，一次装样量3000mL胆汁，流动相采用梯度洗脱，先按4：1比例分离胆酸和甘氨胆酸，然后按3：2比例分离甘氨胆酸和牛磺胆酸，流动相洗脱速度为3～5mL/s。

RESULTS: Sixteen compounds, ursolic acid (1), indole-3-carboxaldehyde (2), indole-3-carboxylic acid (3), p-coumaric acid (4), azelaic acid (5), N-trans-feruloyl tyramine (6), blumenol A (7), 2-hydroxy-3-methylanthraquinone (8), rubiadin l-methyl ether (9), rubiadin (10), quercetin (11), luteolin (12), chrysoeriol 6-C-β-boivinopyranosyl-7-O-β-glucopyranoside (13), alternanthin (14), stigmasta-5, 22-dien-3β-ol (15), and α-spinasterol (16) were obtained from the EtOAc extract of Alternanthera philoxeroides.

结果：得到并鉴定了16个化合物，分别为乌苏酸(1)、吲哚-3-甲醛(2)、吲哚-3-甲酸(3)、对-香豆酸(4)、壬二酸(5)、N-反式阿魏酰基酪胺(6)、布卢姆醇A(7)、2-羟基-3-甲基蒽醌(8)、甲基异茜草素-1-甲醚(9)、甲基异茜草素(10)、槲皮素(11)、木犀草素(12)、柯伊利素-6-C-β-波伊文糖基-7-O-β-吡喃葡萄糖苷(13)、莲子草素(14)、豆甾醇(15)和α-菠甾醇(16)。

A new method for the simultaneous determination of salicylic acid, cinnamic acid, ferulic acid and vanillic acid by stacking-non-aquous-capillary electrophoresis has been proposed.

建立了同时分离测定水杨酸、肉桂酸、阿魏酸和香草酸的电堆集富集-非水毛细管电泳的新方法。

Free organic acid: Vanillic Acid, Cinnamic acid and ferulic acid.

游离有机酸，主要为香草酸﹐桂皮酸﹐阿魏酸。

Used the main eight kinds of phenolic acids with plant-defensive function as a control,and a high performance liquid chromatography to detected the leaves of corn that containing vanillic acid, caffeic acid, syringic acid and coumaric acid.

以植物中主要具有防御功能的8种酚酸作为对照，采用高效液相色谱法测得玉米叶片中主要含有香草酸、咖啡酸、丁香酸及香豆酸4种酚酸类化合物。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。