乙酯

Microwave; polymerization; Methacrylic acid; 2- ethyl ester; Allylthiourea; Polymer-Metal Complexes; catalyze; adsorption.

微波； 聚合；甲基丙烯酸N； N-二甲胺乙酯；烯丙基硫脲；高分子金属配合物；催化；吸附

The results show that the ethyl acetate extract of Alpinia oxyphylla Miquel possesses strongest DPPH radical scavenging activity and reducing power in a concentration-dependent manner.

在还原能力、清除DPPH自由基和羟自由基方面，乙酸乙酯提取物表现出了很强的抗氧化能力，呈现剂量依赖关系。

The result indicated that the reacting mixture containing dioxane 11.3mL/g HDCA which had been added ethyl chloroformate drop wise should be keep at 10℃ for 30min, then, rising to 15℃ for another 20min in the step of forming mixed anhydride ,and 1.5mol/L NaOH was used to dissolve taurine before aminolysis, and crude product was recrystalled by acetone in purifying process.

结果表明，形成混酐时，二氧六环用量为11.3ml/g HDCA，滴加氯甲酸乙酯后先在10℃反应30min，再在15℃下反应20min；用1.5mol/L的NaOH水溶液溶解牛磺酸后再进行氨解；粗产品用丙酮重结晶。

Methods Intestinal flora of human, rat, Beagle dog, and rabbit and CME were anaerobically cultured at 37℃ in vitro. After being extracted by acetic ether, the main metabolites of CME were separated and quantified by HPLC.

采用人、大鼠、Beagle犬及家兔的新鲜粪便37℃厌氧培养，经醋酸乙酯提取后采用RP-HPLC及LC-MS方法对代谢成分进行分离和定性、定量分析。

Under high dilution,the cross-coupling reactions of 4,5-dicyano-1,3-dithiol-2-one(6) and dithia crown-ether annulated tetrathiafulvalenes(3a～3c) in toluene gave asymmetrical dicyano tetrathiafulvalene derivatives(7a～7c) in the presence of triethyl phosphite.The compounds 7a～7c were characterized by(~1HNMR,EA,MS and IR.

在甲苯溶液中，在亚磷酸三乙酯存在下，采取高度稀释的方法，使4，5-二氰基-1，3-二硫杂环戊二烯-2-酮分别和多缩硫杂冠醚进行交叉偶联反应，成功地得到了不对称的2，3-二氰基四硫富瓦烯衍生物。

The present work extends the obserwtion of an earlier report and Shows that the conduction block in nerve produced by cocaine, procaine, urethane, isotonic choline chloride, TEPP and DFP, though not accompanied by any lowering of membrane potential, can be relieved by anodal current.

本文研究可卡因、普鲁卡因、氨甲酸乙酯、氯化胆碱、依色林、TEPP及DFP在两栖类神经所产生的传导阻遏。

The research work and separation methods of arachidonic acid ethyl ester were also reviewed.

同时综述了花生四烯酸的研究概况以及目前提取分离的主要方法，在论述了各种提取分离方法优缺点的基础上，提出用超临界流体色谱法制备花生四烯酸乙酯。

Volatile oil and β-asaron are efficiency parts ofAcorus tatarinowii Scho...

提取石菖蒲挥发油、β-细辛醚、乙醚层、乙酸乙酯层、正丁醇层、水层六个部位。

Azelaic acid showed a higher relative antifeeding rate or a promotion effect on eating, and the absolute antifeeding rate of its ethyl acetate solution could reach 100 percent.

壬二酸的相对拒食率有的较高，有的表现为促进取食的作用，其乙酸乙酯溶液的完全拒食虫率高达100%。

ResultsThe results show that the copolymerization of DMAEMA and DADMAC is an azeotropic compound.

结果 2-甲基丙烯酸二甲胺乙酯和二烯丙基二甲基氯化铵为共沸化合物。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。