查询词典 acetic acid

Nsted acid for the activation of the imine and acetic acid (20 mol %) as the non-chiral proton source for the shift of the keto-enol equilibrium.

94%酸、活化的亚胺乙酸(20摩尔%)的非手质子源为转移的酮-烯醇平衡。

On the basis of the development of a new CE method for the analysis of α-lactalbumin,β-lactoglobulin A and β-lactoglobulin B, different concentrations of acetic acid and trichloroacetic acid for the removal of proteins in raw milk, infant formula A and B, and yogurt were investigated.

建立了毛细管电泳法分析α-乳白蛋白、β-乳球蛋白A及β-乳球蛋白B的方法，考察了不同浓度冰乙酸及三氯乙酸对原料奶、婴儿配方奶粉A和B及酸奶中蛋白的去除效果。

The optimal temperature of D6 is 30℃, the optimal pH ,7.0. The growth of D6 makes use of glucose, malt sugar, lactose, cane sugar, lactic acid, ethanol, glycerin, glycine, but no acetic acid and n-butanol. It can grow in Na2SO4, Na2SOa, Na2S2O3 and S media, and Na2S2O3 is the best substrate.

该菌最适生长温度为30℃，最适pH值为7.0，生长利用葡萄糖、麦芽糖、乳糖、蔗糖、乳酸、乙醇、甘油、甘氨酸，不利用乙酸和正丁醇；可以在Na_2SO_4、Na_2SO_3、Na_2S_2O_3和单质S培养基中生长，并以Na_2S_2O_3为底物时生长效果最佳。

Methods The CSF concentrations of DA,5-HT,5-hydroxyindole acetic acid(5-HIAA) and homovanillic acid were assayed by high-performance liquid chromatography in the patients with viral encephalitis and meningoencephalitis(67 cases),schizophrenia(37 cases) and other diseases(21 cases).

方法对病毒性脑炎和脑膜脑炎患者67例、精神分裂症患者37例和病例对照患者21例采用高效液相色谱法检测其脑脊液中5-HT、DA、5-羟吲哚乙酸(5-HIAA)和高香草酸水平，并进行比较。

Methods The CSF concentrations of DA, 5HT, 5hydroxyindole acetic acid (5HIAA) and homovanillic acid were assayed by highperformance liquid chromatography in the patients with viral encephalitis and meningoencephalitis (67 cases), schizophrenia (37 cases) and other diseases (21 cases).

对病毒性脑炎和脑膜脑炎患者67例、精神分裂症患者37例和病例对照患者21例采用高效液相色谱法检测其脑脊液中5HT、DA、5羟吲哚乙酸（5HIAA）和高香草酸水平，并进行比较。

To explore the issue, 16 experiments to dissolve microcline have been conducted using different solutions with 2mol/L NaCl, 0.05mol/L acetic acid, 5ml crude oil or 0.05mol/L oxalic acid (the values are close to those measured in Tarim oilfield waters) and different initial pHs and temperatures.

为探讨该问题，实验配制了含2mol/L NaCl 、0.05mol/L 乙酸、5ml 原油、0.05mol/L 草酸(这些值接近塔里木盆地油田水实测值)，并控制初始 pH 0、温度，进行了16种不同条件下长石溶解作用的模拟实验研究。

The composition of additive for microemulsion compound diesel oil is formed from oleic acid 60-80%, concentrated ammonia water 15-20%, monoethanolamine 1-5%, acetic acid 1-5%, alkylnaphthalene 1.5-2% and hydrazine 6-10%.

本发明的微乳化复合柴油添加剂组成为：按重量百分比，油酸60-80％、浓氨水15-20％、一乙醇胺1-5％、乙酸1-5％、烷基萘1.5-2％、肼6-10％。

The other was aimed at developing novel solvent system instead of oleum. A kind of solvent system mixed by phosphotungstic acid and acetic acid was put forward.

在实验室中进行了催化剂的考察工作以及工艺条件的考察工作，对实验结果进行了分析和探讨，讨论了各催化剂的催化循环机理，并建立了相应的动力学模型。

We discovered that the best stereoselectivity of the Pictet-Spengler (cis/trans=92:8) was obtained, when the reaction of D-tryptophan methyl ester II-33 with piperonal II-34 in acetic acid was catalyzed by benzoic acid at room temperature.

我们发现室温下在冰醋酸中，D-色氨酸甲酯II-33和胡椒醛II-34在苯甲酸催化下，发生Pictet-Spengler反应的立体选择性最高， cis：trans的比例为92： 8。

The pyroligneous acid also contains acetic acid which can be converted into calcium acetate, from which acetone can be obtained as in.

焦木的酸并且包含可能被转换成钙醋酸盐，从丙酮作为可能被获得的乙酸。

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。