查询词典 acetic acid

Castor seeds were degreased with 3 kinds of solvents including petroleum ether,aether and methylene chloride,and ricins were extracted from the defatted castor cake with acetic acid solution.

方法用石油醚、乙醚、二氯甲烷3种溶剂分别对蓖麻粗籽进行脱脂后，用醋酸水溶液从脱脂的蓖麻饼中提取蓖麻毒蛋白，通过杀鼠活性试验比较3种蓖麻粗毒蛋白的杀鼠活性。

Results Different concentrations of vinegar with different disinfection duration showed significantly different bactericidal effect on Staphylococcus, Escherichia and Candida albicans (F=6.89~156.83, P.05). The effect was better along with higher concentration and longer duration. The average kill rate against natural bacteria on hands was 0.9915±0.0032 after exposed to vinegar solution for 2 min. The average kill rate against natural bacteria on kitchenware, such as table top, chopping block, knife, cupboard, porcelain bowl and the surface of refreshing box of the refrigerator were all above 0.9720 when cleaning and polishing with vinegar solution for 10min. The bactericidal efficacy of vinegar against natural bacteria in room air was enhanced with fumigating duration prolonged (F=1212.13, 5024.46; P.05), while lowered when there were persons in it (t=5.08-30.48, P.05). The content of acetic acid in vinegar dropped by 8.372 g/L when it was stored at 54℃(relative humidity 0.75) for 14 days.

结果 不同浓度的食醋溶液作用不同时间对金黄色葡萄球菌、大肠杆菌和白色念珠菌的杀灭效果不同，浓度越大、作用时间越长杀菌效果越好(F=6.89~156.83，P.05)；对手自然菌作用2min，平均杀灭率为0.9915±0.0032；对厨房内台面、砧板、菜刀、碗柜、瓷碗、冰箱保鲜室表面擦拭消毒10min，对自然菌的平均杀灭率在0.9720以上；对室内空气自然菌的杀灭率随熏蒸时间的延长而提高(F=1212.13、5024.46，P.05)，当室内有人时，杀灭率有所降低(t=5.08~30.48，P.05)；置于54℃恒温箱（相对湿度≥0.75）存放14d，醋酸总含量下降

MethodsAnti-inflammation effect of wild and cultivated Polygonun capitatum were observed by mouse abdominal cavity capillary permeability increase test induced by acetic acid, mouse auricle swelling test induced by xylene, mouse pedal swelling test induced by carrageenin and cotton granuloma test in mouse.

方法采用醋酸致小鼠腹腔毛细血管通透性亢进、二甲苯致小鼠耳肿胀实验、角叉菜胶致小鼠足肿胀和小鼠棉球肉芽肿等实验进行抗炎实验，采用醋酸扭体法进行镇痛实验。

The examination made known, when consistence of acetic acid glacial at the 2%, dairy salt concentration 8%~12%, the best way was to be elected.

研究了采用冰乙酸和食盐的混合液作为汤汁的香菇酸盐渍生产工艺、产品检验等，研究表明，冰乙酸浓度2%、食盐浓度8%~12%是香菇酸盐渍的最佳生产工艺条件。

Acceptable resolutions were achieved when it was applied for the separation of dipeptides including Leu-Tyr and Val-Tyr by using 1-butanol-acetic acid-water (4:1:5, V/V/V) solvent system. The proteins including cytochrome C and myoglobin, lysozyme and myoglobin, and fresh chicken egg-white proteins were well separated by 12.5% PEG1000-12.5% K2HPO4-75% water (pH 9.0) and 16% PEG 1000-12.5% K2HPO4-71.5% water (pH 8.0) system.

应用研究表明，采用正丁醇-醋酸-水(4：1：5， V/V/V)和PEG1000-磷酸钾盐-水(12.5：12.5：75， W/W/W)(pH 9.0)体系可以在较高的流动相流速和较高的固定相保留下分别实现对亮氨酸-酪氨酸和缬氨酸-酪氨酸二肽混合物以及细胞色素C与肌红蛋白、肌红蛋白与溶菌酶混合物及鸡蛋清样品中蛋白成分的成功分离。

Methods Fresh adult bovine tendon was dissolved with acetic acid and enzyme-digestion for type Ⅰ collagen. Then they were dialysed and purified for refined liquid collagen, which was cross-linked with glutaraldehyde.

取新鲜成年牛跟腱，用乙酸溶解－酶消化法提取Ⅰ型胶原，并进行盐析、透析、纯化得到精制的液态胶原，用戊二醛进行交联。

Analysis was carried out on a Hypersil ODS2 column(4.6 mm×250 mm,5 μm) with acetonitrile-0.1% glacial acetic acid as the mobile phase,and eluates were detected by an evaporative light scattering detector.

采用Elite Hypersil ODS2(4.6 mm×250 mm，5μm)色谱柱，乙腈-0.1%冰醋酸水溶液为流动相梯度洗脱，流速1mL.min-1，以蒸发光散射检测器检测，记录70 min色谱图。

In synthesizing process, the optimum quanta of hydrogen peroxide solution and glacial acetic acid which affect epoxide number were determined.

对合成过程中影响环氧值的两个重要条件：即双氧水和冰醋酸的用量做了大量实验，确定了最佳条件。

The present article obtains fruit vinegar by alcohol and acetic acid fermentation,with Banana Peel being raw material.

以香蕉皮为原料，经酒精发酵和醋酸发酵制得风味纯正的香蕉皮膳食纤维果醋。

In this paper,fruit vinegar was produced with liquid surface fermentation through alcohol and acetic acid fermentation using apple-pear as raw material.

以苹果梨为原料，采用液态表面发酵法，经酒精发酵和醋酸发酵生产苹果梨果醋。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。