查询词典 molar quantities

The results showed that the optimal conditions for synthesis of benzyl acetate were: the molar ratio of acetic acid to benzyl alcohol was 2∶1,the amount of the water carrier was...

在此条件下，酯化率为76%，酯含量为91%。Al2O3/SO42-催化剂的合成方法简单，催化活性高，可重复使用多次。

Objective To identify the components of polysaccharides from Acanthopanax giraldii Hams and its molar ratio.

目的 研究红毛五加多糖－I的单糖组成，及它们的摩尔比。

The optimum HCI/ferrous chloride molar ratio was 1/3.3 when ironic chloride was generated by using hydrogen peroxide. The generated ironic chloride oxidized acetoin in good yield and could be recycled for many times.

用双氧水再生氯化铁时，加入浓盐酸最佳用量与氯化亚铁的摩尔比为1：3.3，再生后的氯化铁氧化效果良好，可多次循环使用。

The result indicated that manganese chloride,acetylacetone,sodium hydroxide,were grinded for 15 mins at room temperature with the molar ratio of 1∶4∶1.8,the yield of manganese ac...

结果表明：氯化锰、乙酰丙酮、固体NaOH按1∶4∶1.8的摩尔比，在室温下研磨15 min所得产率最高，产率为68%，比传统液相法的产率(25%)高出43%。

The transesterification reaction were studied under organic solvents systemThe dosage of diatomite immobilized lipase of Enterobacter aerogenes is 1000 U, ethanol as acyl receptors(alcohol:oil molar ratio is 4:1,2 times add),5 mL n-hexane, 180 r/min,35℃,48 h,and the conversion rate of 92.91%.

有机溶剂体下催化生产生物柴油硅藻土固定化产气肠杆菌脂肪酶用量为1000 U，乙醇为酰基受体(醇：油摩尔比为4：1，2次等量加入)，5 mL正己烷，180 r/min，35℃，反应48 h，转化率达92.91%。

Compared with the previous method, the improved route can provide directly a spheroid form of immobilized lipase particles of which the size can be controlled by adding non-ionic surfactants during the preparation process so as to increase the recovery rate of enzyme as well as decrease the external diffusional restriction which can diminish the enzyme activity. The improved method can also alter the hydrophobicity and microstructure of the immobilized enzyme matrix by changing the molar ratios of different alkoxyl silanes so as to enhance the enzyme activity by a"surface active effect"and eliminating the internal diffusional restriction.

与前人的制备方法相比，改进的方法可直接制得球形的固定化酶颗粒，而且颗粒的大小可以通过在制备过程中加入非离子型表面活性剂加以控制，从而可以提高固定化过程的酶活回收率和减小外扩散效应对酶的表观催化活力的影响；改进的方法还可以通过改变原料硅氧烷的种类及配比来改变最终制得的固定化载体的疏水性质及微观结构，从而通过对脂肪酶的&界面活化&作用和减小内扩散效应提高固定化脂肪酶的表观酯化活力。

Using pickling liquid wastewater of hydrochloric acid,iron scurf and aluminiferous mine as raw materials,a series of poly-aluminum-ferric-silicate-chloride which has different molar ratio of Si:Al:Fe was prepared.

利用天津某钢厂的工业废料——盐酸酸洗废液、铁屑和含铝矿等为原料，合成了具有不同摩尔比的无机高分子絮凝剂聚硅酸氯化铝铁，采用Zeta电位测定法分析了产品在其水解溶液中的带电情况，并通过絮凝实验对絮凝剂的絮凝机理作了初步分析。

The proper synthetic technology are as follows: molar ratio of P-aminobenzene sulfonic acid/phenol/formaldehyde is 1∶2∶9, concentration of P-aminobenzene sulfonic acid is 0.4mol·L~-1 , pH of reaction system is 8.0, reaction temperature is 95℃ and reaction time is 3.5h. aminobenzene sulfonate ; dispersant ; ceramic grind additives

国外在磨矿行业已大量使用高效减水剂助磨并取得了显著效果，国内关于这方面的研究起步较晚，主要采用如碳酸钠、硅酸钠、磷酸钠等无机盐，而且也主要是用于有色金属选矿方面，在硅酸盐工业原料加工中有部分采

Anthropometrical measurements were performed and serum concentrations of IGF-I, insulin-like growth factor binding protein-3 (IGFBP-3), leptin, soluble leptin receptor, as well as the estimated molar excess of sOB-R over leptin were obtained. Two groups were formed.

执行人体测量，获得了胰岛素样生长因子-1、胰岛素样生长因子连接蛋白-3(IGFBP-3)、瘦素、可溶性瘦素受体的血清浓度和可溶性瘦素受体超过瘦素的估计摩尔量。

Anthropometrical measurements were performed and serum concentrations of IGF-I, insulin-like growth factor binding protein-3 (IGFBP-3), leptin, soluble leptin receptor, as well as the estimated molar excess of sOB-R oer leptin were obtained. Two groups were formed.

执行人体测量，获得了胰岛素样生长因子-1、胰岛素样生长因子连接蛋白-3(IGFBP-3)、瘦素、可溶性瘦素受体的血清浓度和可溶性瘦素受体超过瘦素的估计摩尔量。

I want to be a big fish in a small pond.

我要做一条在小池塘里的大鱼。

While the software functioned well, we did not feel the same about their customer support!

虽然该软件运行良好，我们没有同样的感觉他们的客户支持！