乙酯

Result: The stability obtained from alcohol, acetone, ether, ethyl ether all improved the stabilization of curcumin. 80% Alcohol extract had the optimal stabilizineg ability for curcumin.

结果：姜黄的乙醇、丙酮、乙醚、醋酸乙酯等提取部位均能降低姜黄素的降解速率。80%的乙醇提取物对姜黄素的稳定作用最强。

The solubility of the novel polyamides are greatly improved compared with the conventional aramids, especially the polyamide with dendritic blocks of the second genernation as side chains are soluble in most of the common organic solvents such as ether, ethyl acetate, chloroform, acetone, tetrahydrafuran etc.

树状片段的引入大大地改善了聚酰胺的溶解性，特别是以第二代树状片段为侧基的聚酰胺的溶解性得到了很大的改进，可以溶于大部分常见的有机溶剂，如乙醚、乙酸乙酯、氯仿、丙酮、四氢呋喃等。

DPPH method, pyrogallol method and Fenton reaction were used to study the scavenging ability of extracts with 95% ethanol, ethyl acetate, acetone, acetic acid, chloroform, methanol to free radical activity.

方法］应用DPPH法、邻苯三酚自氧化法和Fenton反应分别研究了浓度95%乙醇、乙酸乙酯、丙酮、乙酸、氯仿、甲醇提取物清除自由基活性的能力。

At last, the effective approach was found that the 024-antibiotic can be purified by freez-dry, methyl alcohol soaking, acetone, chloroform, and methyl alcohol continuously washing, alumina and silica gel column chromatography.

粗提制品的理化性质研究表明，024放线菌所产抗生素为无色晶体，易溶于水，可溶于甲醇和乙醇，且在甲醇中的溶解度较大，不溶或难溶于丙酮、氯仿、正丁醇、乙酸乙酯与苯。

Compared the extraction effects of yellow pigment from the corn protein powder by 95 %ethanol,isopropanol,chloroform,acetone,ac-Etylace,petroleum benzene,distilled water.

利用索氏提取法比较95%乙醇、异丙醇、氯仿、丙酮、乙酸乙酯、石油醚和蒸馏水提取玉米粗蛋白粉黄色素的效果，结果发现95%乙醇为最佳溶剂，95%乙醇提取液λmax为446nm。

The ethanol and water are mixed as the solvent, adding TEOS as the silicon source and ammonia as catalyst to the process of the spherical silica particles at 40℃.

在乙醇和水的混合溶剂中，以正硅酸乙酯为硅源、氨水作催化剂，在40℃水浴下制备SiO2球形颗粒。

Results N-hexane ∶acetoacetate ∶95%alcohol(12.8 ∶7.2 ∶2.2)were used as developing agent together with strong aqua ammoniae,in which the thin layer plate was saturated for 40 m...

结果以正己烷-乙酸乙酯-95%乙醇(12.8∶7.2∶2)为展开剂，用浓氨水和展开剂同时饱和40min，展开，取出晾干，以10%浓硫酸-乙醇为显色剂，70℃下加热30min，可获得分离清晰的6个有色斑点。

In order to improve the high-temperature resistance of bismuth vanadate yellow pigment,it was coated with SiO2 through hydrolysis reaction of tetraethoxysilane.

为了提高钒酸铋(BiVO4)黄色颜料的耐高温性，利用正硅酸乙酯的水解反应，在BiVO4表面形成SiO2膜，使钒酸铋黄色颜料经过1 000℃的高温煅烧，依然颜色鲜艳。

Methods: The ratios of Th1/Th2 cells in the mouse with immunological liver injure were detected by flow cytometry with two color intracellular cytokine staining; the changes in substance P, vasoactive intestinal peptide in the pituitary gland and peripheral blood were detemined by radio-immunoassary.

应用尾静脉注射卡介苗和脂多糖建立免疫性肝损伤小鼠模型，分离小鼠淋巴细胞，经佛波醇乙酯、离子霉素、莫能菌素刺激培养6h后，收获细胞，利用细胞内细胞因子染色流式细胞术检测Th1/Th2比例：采用放免法检测血浆和脑垂体中SP、VIP含量。

Chiral ligands mentioned above and their complexes with acetate copper were used as enantio-selective catalysts in asymmetric cyclopropanation reactions of diazoacetate and 1,1-diphenyl ethylene. Investigations indicate that all of them reveal certain optical-selective capability, but chiral C2-symmetric 2,6-bispyridine ligands show better catalytic capability than chiral asymmetric schifF-base ligands.

选择了2个手性2，6-吡啶双噁唑啉配体和6个手性不对称席夫碱配体与醋酸铜形成的配合物作为催化剂，对重氮乙酸乙酯与1，1-二苯乙烯不对称环加成进行催化反应，发现这8个催化剂对1，1-二苯乙烯的不对称环丙烷化反应都表现出了一定的光学活性诱导能力，手性2，6-吡啶双噁唑啉-铜类具有比手性Schiff碱-铜类更好的催化性能。

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。