查询词典 extractant

A method for determination of basic nitrogen-containing compounds in mainstream smoke was established. In the condition of basic substance barium hydroxide powder and extractant chloroform, 18 basic nitrogen-containing compounds were analyzed by gas chromatography-selective ion monitored-mass spectrometry, such as pyridine, 2-methylpyridine, 2-methylpyrazine, quinoline and indole, etc.

在氢氧化钡碱性环境中，以三氯甲烷为萃取剂，采用气相色谱－选择离子监测－质谱法测定吡啶、2-甲基吡啶、2-甲基吡嗪、喹啉、吲哚等18种碱性含氮化合物。

The extraction equilibrium constant of the extractant is closely related with its chemical structure.

研究表明，空间参数是影响酚类络合剂萃取性能的主要参数。

The effect of extractant structure on the third phase formation was also discussed.

这一结果改变了传统的看法认为加入TBP能提高酰胺对铀的萃取。

The experimental results showed that the impurities in extractant can quicken extraction rate.

实验发现萃取剂中的杂质对萃取具有较大的加速作用，这对工业生产具有一定的实际意义。

The effect of the extractant, temperature, weight and consistency of sodium hydroxide as well as time on the reaction were discussed.

讨论了萃取剂、温度、NaOH的质量与浓度及反应时间对反应的影响。

The extraction system has been established, including the selection of extractant and organic diluents and the ratio between them

确立了萃取体系，包括筛选出了适宜的萃取剂、稀释剂和改质剂，并确定相互之间的用量比例

Objective: To observe longterm toxicity of Xinshao extractant to rats.

目的：观察辛芍提取物对大鼠的长期毒性作用。

Objective To evaluate the antibacterial activity in vitro of Galla Chinensis ethanol extractant against S.

目的 观察五倍子乙醇提取物对表皮葡萄球菌的体外抗菌活性及其形态学变化。

Objective To evaluate in vitro antibacterial activity of Galla Chinensis ethanol extractant against S.

目的 观察五倍子乙醇提取物对表皮葡萄球菌的体外抗菌活性。

Sample preparation, chromatogram conditions, extractant and section of the standard sample are tested and discussed.

对样品制备、色谱条件、萃取剂和内标物选择进行了试验和讨论。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。