乙二酰胺

STUDY ON THE EQUILIBRIUM AND COORDINATION COMPOUND OF IRONEXTRACTION WITH N,N-DI (1-METHYLHEPTYL)ACETAMIDE IN HYDROCHLORIC ACID

N，N-二(1-甲基庚基)乙酰胺在盐酸介质中对铁的萃取平衡及其配合物的研究-中国学术期刊网络出版总库

Polyethersulfone with Cardo is a developed engineering thermoplastic and membrane material with high glass transition temperature. PES-C ultrafiltration membranes were prepared by phase inversion method using dimethylacetamide as solvent and PVPK3O as additive.

采用凝胶相转化法，以新型耐高温工程塑料－含酚酞侧基的聚芳醚砜为膜材料，N，N-二甲基乙酰胺为溶剂，通过改变铸膜液中添加剂聚乙烯吡咯烷酮(PVPK30)的含量，在平板刮膜机上制备了一系列超滤膜。

The results show that these derivatives can be obtained in the yield of over 90％ in the presence of DMF when using ethyl acetate as a catalyst.

结果表明，以N，N-二甲基甲酰胺为溶剂，以乙酸乙酯为催化剂的合成路线，均可以以90％以上的得率合成出上述化合物。

The calculated IC times of chl-a in ethyl acetate, tetrahydrofuran and dimethyl formamide are 141, 147, and 241 fs, respectively.

计算得到的叶绿素a分子在乙酸乙酯、四氢呋喃和二甲基甲酰胺溶剂中的内转换时间分别是141、147和241 fs。

As can be seen in Fig. 5, dipropyl ether will be recovered in the distillate using 1-pentanol, N,N-dimethylformamide and 2-ethoxyethanol as entrainers and butyl propionate is the only entrainer studied that inverts the volatility of the azeotropic mixture.

从图 5可以看出，使用1-戊醇、N，N-二甲基甲酰胺和2-乙氧基乙醇作为共溶剂时二丙醚将在馏分中回收，丙酸丁酯是唯一与共沸混合物挥发性相反的共溶剂。

Dipropyl ether will be recovered in the distillate using 1-pentanol.

使用1-戊醇。N.N-二甲基甲酰胺和2-乙氧基乙醇作为共溶剂时二丙醚将在馏分中回收。

A SPE procedure was suggested for extracting and concentrating fisetin by using different volume fractions of ethanol in aqueous solution as the loading conditions.

分别以中药黄栌的主要成分非瑟酮为印迹分子、丙烯酰胺为功能单体及乙二醇二甲基丙烯酸酯为交联剂，通过封管聚合法合成了分子印迹聚合物；将其装于自制的固相萃取柱中，研究了以不同体积比的乙醇-水溶液为溶剂时非瑟酮在柱上的保留行为；通过优化清洗及洗脱条件，使非瑟酮与它的结构相似物槲皮素在柱上得到了很好的分离。

Effect of Common Goldenrod Herb on rats Gastrelcosis Caused by Indocin;2. Animal Model of Helicobacter pylori Infection in BALB/c Mice with Gastrelcosis ;3. AIM To study the synthesis of zinc chlorin e 4 (1), its experimental antigastrelcosis activity as well as the protection against acute liver injuries.

蚕沙叶绿素粗品经酸碱降解反应制得二氢卟吩e6(3)，3经吡啶回流降解制得二氢卟吩e4 (2 )，2与醋酸锌络合制得 1；并测定 1对消炎痛诱发的大鼠胃溃疡的保护作用及对硫代乙酰胺、四氯化碳所致小鼠急性肝损伤的防治作用。

We researched the high molecular polyether,polyamide hot melt adhesive, 2-phenoxy ethanol phenyl cellosolve,propylene glycol phenylate,etc,which have passed appraisal of the provincial science and technology achievement.the company gains higher economy profit after putting into production.

公司设有专业科研机构从事新产品的开发研制工作。先后研制开发成高分子聚醚，聚酰胺热熔胶，乙二醇苯醚，丙二醇苯醚等十多项新产品，均通过省级科技成果鉴定。

In chapter four, molecular imprinting polymers against amino acid derivatives utilizing 2-VP+AM as combined functional monomer and trimethylolpropane trimethacrylate as tribasic cross-linker were prepared and result was compared with those with the same amino acid derivative as the imprinted molecules utilizing ethyleneglycol dimethacrylate as dibasic cross-linker. It was found that cross-link intensity of the molecular imprinting polymer is higher when TRIM was utilized and baseline separation for the imprinted molecule could be achieved. When TRIM was utilized as cross-linker more molecule is imprinted during the polymerization.

第四章采用2-乙烯基吡啶+丙烯酰胺复合功能单体，考察了三元交联剂三甲氧基丙烷三甲基丙烯酸酯烙印氨基酸衍生物的情况，并与二元交联剂乙二醇二甲基丙烯酸酯烙印相同氨基酸衍生物的情况进行了对比，发现三甲氧基丙烷三甲基丙烯酸酯交联剂在较小的用量下就可使分子烙印聚合物达到足够的交联度，实现烙印分子的基线分离。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。