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丁二酸

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In their structures, polyanions are bridged by Ln ions via the coordination of the bridging oxygen atoms and terminal oxygen atoms, forming a W–Ot′–Ln–Ob–W linkage; and through the W–Ot′–Ln–Ob–W linkage a one-dimension infinite linear chain with alternating cations and anions is formed.

在相似的合成条件下,我们向原有体系内加入顺丁烯二酸作为有机配体,合成了化合物7,其7的基本结构和化合物1-6很相似,但有一个顺丁烯二酸阴离子取代了一个NO3-离子的位置。

Utilization ofantiseptic would not be affected by temperature or pH.The antiseptics had a longperiod of validity,the effect is much better than most other antiseptics,could notarose skin hypersusceptibility,resist to metabolization,and had a wide utilizationrange.

研究中采用了本实验室自行合成的抗菌剂反丁烯二酸桂醇甲酯,测定了反丁烯二酸桂醇甲酯在不同的pH值、不同温度、不同浓度条件下的抑菌活性、抑菌谱,并与其它常用抗菌剂的抑菌效果做了比较。

Water, Cyclomethicone, Glycerin, Sd Alcohol 40-B (Alcohol Denat.), Propylene Glycol, Melia Azadirachta Leaf Extract, Lecithin, Arctium Lappa Root Extract, Xylitol, Lactitol, Alpha-Glucan Oligosaccharide, Lactoferrin, Potassium Thiocyanate, Glucose Pentaacetate, Glucose Oxidase, Lactoperoxidase, Glycoproteins, Panax Ginseng Root Extract, Equisetum Arvense Extract, Hydrolyzed Milk Protein, Peg-8, Caprylyl Glycol, Sebacic Acid, Sodium Polyacrylate, Betula Alba Bark Extract, Cupressus Sempervirens Leaf Extract, Hamamelis Virginiana Extract, Avena Sativa Meal Extract, Humulus Lupulus Extract, Silk, Nylon-12, Polyacrylamide, Polymethyl Methacrylate, Butylene Glycol, Salicylic Acid, Lauryl Methacrylate/Glycol Dimethacrylate Copolymer, Tocopheryl Acetate, C13-14 Isoparaffin, Laureth-7, Triethanolamine, Xanthan Gum, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Phenoxyethanol, Chlorphenesin, Benzoic Acid, Methylparaben, Fragrance, Titanium Dioxide

水,环甲硅脂,甘油,Sd Alcohol 40-B,丙二醇,印度楝树叶萃取,卵燐脂,牛蒡根萃取,木糖醇,乳糖醇,α-葡低聚糖,乳铁蛋白,硫氰酸钾,葡萄糖五乙酸酯,葡萄糖氧化酶,乳过氧化物酶,糖蛋白,人参根萃取,问荆萃取,水解牛奶蛋白,聚乙二醇-8,辛乙二醇,癸二酸,聚丙烯酸酯钠,白桦萃取,丝柏叶萃取,金缕梅萃取,燕麦萃取,啤酒花萃取,丝,尼龙-12,聚丙烯醯胺,聚甲基丙烯酸甲酯,丁二醇,水杨酸,甲基丙烯酸十二酯,醋酸盐维他命E,C13-14 异烷烃,月桂醇聚醚-7,三乙醇胺,山羊胶,丙烯酸/C10-30烷基丙烯酸聚合物,苯氧乙醇,氯苯甘醚,苯甲酸,羟苯甲酯,香料,二氧化钛

The synthesis path of 2-phosphono-butane-1,2,4-tricarboxylic acid is studied by using alkyl phosphate,butendioic acid dialklesters and methyl acrylate with the catalyst of sodium methylate.

论文摘要本文以亚磷酸二甲酯,顺丁烯二酸二甲酯,丙烯酸甲酯为原料,甲醇钠为催化剂,合成了 2-膦酸丁烷-1,2,4-三羧酸并对中间物及产物进行了 IR、13C,31P 核磁,MS 表征。

Synthesis technology of cinnamyl methyl fumarate containing α,β-unsaturated carbonyl group and its antimicrobial activity was studied.

以α,β-不饱和羰基结构为母体设计合成反丁烯二酸桂醇甲酯,并对反丁烯二酸桂醇甲酯的抗菌活性进行了研究。

A series of polyether based polyurethaneurea aqueous dispersions with well-defined hard segment s were prepared by fractional steps with polyether polyol, 4,4′-diphenylmethane diisocyanate,dimethylolpropionic acid,1,4-butanediol,isophorone diisocyanate and ethylenediamine.

以二苯基甲烷二异氰酸酯、二羟甲基丙酸、1,4-丁二醇、异佛尔酮二异氰酸酯和乙二胺为硬段,聚醚多元醇为软段,通过分子设计采用分步合成法,制备了具有规整硬段和良好分散性能的聚醚型聚氨酯脲水分散液。

Attempts in part I of the dissertation were to develop microemulsion systems using medium chain triglyceride, Captex 300, deionized water (H2O), and TPGS as surfactant for the oral delivery of protein drugs or poorly water soluble drugs. Pseudo-ternary phase diagrams were constructed to elucidate the phase behavior of systems composed of medium-chain triglyceride and water with TPGS as main surfactant, polysorbates (Tween 20, Tween 40, Tween 60 and Tween 80) as adjuvant surfactants, and polyethylene glycols (PEG 400 and PEG 600) and polyols (ethanediol, 1,2-propanediol, 1,3-propanediol, 1,3-butanediol, 1,4-butanediol and glycerin) as cosurfactants.

藉由拟三相图(Pseudo-ternary Phase Diagrams)的建立来了解中链型三酸甘油酯、去离子水及TPGS为主要界面活性剂配合聚醇山梨酯(如Tween 20、Tween 40、Tween 60及Tween 80)为辅助界面活性剂或聚乙二醇(如PEG 400及PEG 600)及多醇类(如乙二醇、1,2-丙二醇、1,3-丙二醇、1,3-丁二醇、1,4-丁二醇及甘油作为共界面活性剂所形成的微乳基剂之相变化。

A method to determine micro amount of meleic acid in fumaric acid is described, and the results confirmed by gas chromatography.

本文研究了反丁烯二酸试样中微量顺丁烯二酸的测定方法。

The density, binding energy and radical distribution function of HTPB/plasticizers blends and binder hydroxyl-terminated polybutadiene, and plasticizer dioctyl sebacate, dioctyl adipate, dibutyl phthalate, dioctylphthalate were calculated by molecular dynamics simulation for evaluating compatibility of HTPB and plasticizers.

为评价端羟基聚丁二烯与增塑剂相容性的优劣,采用分子动力学模拟方法对纯HTPB、增塑剂癸二酸二辛酯、己二酸二辛酯、邻苯二甲酸二丁酯、邻苯二甲酸二辛酯及HTPB与增塑剂组成的共混物的密度、结合能和径向分布函数等进行了计算。

Two types of haptens, the earboxylated propyl amino derivative of the acid moiety (HCA1) that is the hydrolyzed product of cyhalothrin, and the carboxylated ethyl carbonyl derivative of the alcohol moiety (HCB2) were synthesized, and conjugated with the carrier proteins bovine serum albumin and ovalbumin respectively by the active ester method and the mixed anhydride method. The polyclonal antibodies were obtained after immuning to the New Zealand rabbits.

通过对氯氟氰菊酯分子结构中的酸部分接4-氨基丁酸(HCA1)和醇部分接丁二酸酐(HCB2),合成两种不同的半抗原,并通过碳二亚胺法将HCA1和HCB2分别与牛血清蛋白偶联制备了人工抗原HCA1-BSA和HCB2-BSA,通过活泼酯法将HCA1、HCAS和HCB2分别与卵清蛋白偶联制备包被抗原,两种人工抗原通过免疫新西兰大白兔来制备相应的多克隆抗体。

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I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里,举止就文雅一些,因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计,这件高贵的制服是香港本土制造,是我们第一套不配帽子的制服。

Do not 'inflate' your achievements and/or qualifications or skills .

不要 '夸大' 你的业绩或成果,条件或者技能。