乙酸的

Objectives: Through studying the distribution of Sppan acetic ether extract in donor's hearts of rats and its effect on IL-1β in blood, to approach the distribution target ability of sappan in donor's hearts, and its possible immune resist mechanism.

目的：通过研究苏木乙酸乙酯提取物在同种异位心脏移植大鼠供体心脏的分布情况和对小鼠外周血IL-1β活性影响，探讨苏木免疫活性部位在供体心脏分布的选择性及其免疫抑制作用机理。

Therefore,it was proved that extracting the anti-fungal ingredients from chestnut leaves with ethyl acetate was the most effective method.

因此证明，用乙酸乙酯索氏提取板栗叶片的抗菌成分是最有效的方法。

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。

Make solutions of 4:1, 1:1, and 1:4 ratios of hexane:ethyl acetate.

配制一个4：1，1：1和1：4的己烷：乙酸乙酯的溶液。

European or Traditional Process - Direct Method: The direct process involves softening the beans by steam first, then washing them for about 10 hours with either a methylene chloride or ethyl acetate solution to absorb the caffeine from the bean.

欧洲或传统工艺-直接方法：直接过程涉及软化咖啡豆的蒸汽，然后洗涤他们大约10小时带有二氯甲烷或乙酸乙酯溶液吸收咖啡因的咖啡豆。

The effects of different entrainers(methanol,acetone,ethyl acetate,petroleum ether and ethanol of different concentrations) on the diosgenin extraction rate were studied.

探讨了乙醇、甲醇、丙酮、乙酸乙酯、石油醚作为夹带剂以及在无夹带剂的条件下，对薯蓣皂素收率的影响。

Various fractions of tannins with different polarities and relatively narrow molecular weight distribution were obtained by extractions using ether and ethyl acetate sequently.

通过乙醚和乙酸乙酯萃取可得到极性不同的组分。分析表明，各级分的分子量分布范围不同，且相对较窄。

Vitamin A and its derivatives are important medicine as well feedstuff, in which VA acetate is the most important.

维生素A及其衍生物是一类重要的药品和饲料添加剂，最常用的维A衍生物是其乙酸酯。

Objective To establish a method for determination of sorbic acid and benzoic acid in ham by HPLC. Methods Sea sand were added into samples-distill by water in the condition of alkalescence vibratedly-add potassium ferrocyanide and zinc acetate (to deposit protein, faecula,fat.)-determination by HPLC after filtration.

目的 建立火腿肠食品中苯甲酸、山梨酸的高效液相色谱测定方法方法样品加入海砂分散黏稠成块的样品，在碱性条件下用水振荡提取，加入亚铁氰化钾和乙酸锌沉淀蛋白质、淀粉和脂肪等，滤膜过滤进行液相色谱分析。

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。