乙酸乙酯

Methods: Micromembrane filtration,ethyl acetate-formalin separation,giemsa stain.

微孔滤膜过滤、乙酸乙酯福尔马林分离、G iem sa染色、油镜及相差显微镜观察。

Water, methanol and ethyl acetate extraction method were used to extract non-oil components from Myrtus communis Linn. leaves, and then radical scavenging activity and antioxidant role of these extracts were investigated using four chemiluminescence systems and two colorimetric systems.

采用水提取法、甲醇－水提取法和乙酸乙酯提取法3种方法从香桃木叶中提取非精油组分，然后用4种化学发光体系和2种比色体系检测其清除自由基和抗氧化作用。

Result Extracts of Myrtus communis Linn.leaves not only effectively scavenged O2(superscript -), O H,DPPH and ONOO(superscript -), but reduced or prevented DNA oxidative damage caused by OH and inhibited lipided pexoxidation.

香桃木叶的非精油组分3种提取物均能有效清除O2、OH、DPPH和ONOO，减轻或消除OH对DNA的氧化损伤，抑制脂质过氧化，其中甲醇－水提取物清除O2和ONOO能力最强，乙酸乙酯提取物清除OH和DPPH的效果最佳。

Basic drugs, lidocaine, benghexolum, chlorpromazine, diazepam, clozapine, internal standard of SKF525A(all of 5μg), estazdam and alprazolam (all of 10μg), are extracted from superfatted necrogenic tissues with mixture reagents of ethyl acetate and diethyl ether under basic condition, and determined by gas chromatography with nitrogenphosphorus detector.

在高度腐败及脂肪较多的脏器中加入碱性药物利多卡因、安坦、氯丙嗪、安定、氯氮平及内标物SKF_525A各5.0μg，舒乐安定、佳静安定各10.0μg，在碱性条件下用乙酸乙酯与乙醚混合液提取，经GC/NPD分析。

When the mixed-culture system was used to the traditional technology of Shanxi overmature vinegar with 3% inoculum, the yield of alcohol was increased by 14%, the conversion rate of alcohol to sugar was increased by 18.6%, and the content of ethyl acetate was doubled.

以3%的共培养物加入到传统山西老陈醋的酿酒过程中，主要生产指标较传统工艺有显著提高，其乙醇产量提高14%，糖醇转化率提高18.6%，乙酸乙酯的含量提高了1倍。

Shanxi Yangling 712100, ChinaAbstract Screening of the effective anti-tumor fractions from acetic ester fraction and water fraction as well as alkaloids fraction and non-alkaloids fraction of Oxytropis Kansuensis on mice bearing S180 and H22 in vivo.

以甘肃棘豆提取物的乙酸乙酯部位、水相部位，以及生物碱和非生物碱部位，对荷S180和H22肿瘤小鼠进行了体内抗肿瘤实验。

The parasiticidal effect of ethanol extracts from a plant Dioscorea zingiberensis on dactylogyrid Dactylogyrus intermedius found in goldfish was studied to search for parasiticidal substances by standard laboratory procedures compared with the other four drugs mebendazole, abamectin, ivermectin and praziquantel.

以寄生在金鱼Carassius auratus鳃部的中型指环虫Dactylogyrus intermedius为指示寄生虫，采用活体感染、活体杀虫的方法，研究了用不同溶剂（石油醚（沸程60~90℃）、氯仿、乙酸乙酯、乙醇和水）分别对盾叶薯蓣Dioscorea zingiberensis进行提取，其5种提取物的杀虫活性。

Methods Cyclohexane, ethyl acetate and glacial acetic acid (8∶8∶0.8) were used as the developing solvent. Samples were analyzed on a layer plate of silica gel G thin by using 20% phosphomolybdic acid as chromogenic agent.

以环己烷乙酸乙酯冰醋酸（体积比8∶8∶0.8）为展开剂，以羧甲基纤维素钠为黏合剂自制硅胶G薄层板，20％磷钼酸溶液为显色剂，进行薄层色谱分析。

The catalyst was characterized by XRD,no apparent characteristic peaks of phosphotungstic acid are observed,which indicates that heteropoly acid dispersed finely in the molecular sieves,and the structure of ZSM-5 was not destroyed.

将催化剂用于合成乙酸乙酯，探讨了操作条件包括原料组成，催化剂用量和反应时间对酸转化率的影响并与浸渍方法得到的催化剂进行重复使用性能比较。

The effects of the extracts from Brucea javanica using chloroform and ether acetate on the activity of protease and the protein contents of Pieris rapae were studied.

鸦胆子氯仿和乙酸乙酯提取物对菜青虫幼虫蛋白酶的活性和蛋白质含量均有明显影响。

If you are committed to an education career, then the Master of Arts in Education from Ashford University is for you.

如果你是致力于教育事业，那么，艺术教育硕士学位阿什福德大学是给你的。

objective:to explore the expression of survivin protein and its mrna in rectal cancer and their clinic significance.

目的：研究凋亡抑制因子survivin蛋白及其mrna在直肠癌组织中的表达及其与临床病理关系。