查询词典 ionization

The result indicates that the potential-pH equilibrium diagram, solution's practical pH and metal corrosion's measured potential at corresponding temperature must be used when potential-pH equilibrium diagram is used. And also the potential-pH equilibrium diagram in Fe—H〓O system at different temperature is gathered and classified. According to thermodynamics data, the relation equation of water ionization equilibrium constant K〓 and of ammoniac equilibrium constant K〓 to temperature T is respectively derived.

二、高温电位-pH平衡图的应用与高温溶液实际pH值的计算对高温电位-pH平衡图的应用方法和溶液的高温实际pH值进行了分析和计算，指出在用电位—pH图进行分析时，必须使用相应温度下的电位—pH图、该温度下溶液的实际pH值和金属腐蚀电位测量值，并对各种温度下Fe—H〓O体系的电位－pH图进行了收集归类。

Methods The ionization constant was determined with acid-basle titration in acetone/water solutions with different ratios, the pH at half neutralization point was regarded as pKa, the value to infinite diluted in pure water was explored and the lgP was determined with bottle-shaking method by HPLC.

方法采用酸碱滴定法测定各不同体积比的丙酮-水溶液中药物半中和点时的pH值作为药物在该体积比的丙酮-水溶液中的pKa值，再外推至纯水中药物浓度无限稀释时的pKa值；采用HPLC配合摇瓶法测定药物的分配系数。

The solubility curve of mandelic acid in different solvent and the distribute ratio of mandelic acid in benzene-water system in different pH condition were determine by HPLC. The results showed that the ionization constant pK_a of mandelic acid was 5.28, the solubility of mandeli...

研究结果显示，扁桃酸的离解常数pKa值为5.28；扁桃酸在水和苯中的溶解度曲线可分别表示为：S=38.756e0.0354t和S=0.2746e0.0649t；扁桃酸在水和苯中的溶解度差值曲线可分别表示为：ΔS/S1=0.1196t-2.712和ΔS/S1=0.3688e0.0723t；苯是最适合用于冷却结晶的溶剂；热苯萃取扁桃酸的苯水比例可选为1∶1；降低pH值有利于扁桃酸在苯中的分配。

D-amino acid ; Glutathione ; Non-covalent complex ; Electrospray ionization mass spectrometry ; Dissociation constant

D-氨基酸；谷胱甘肽；非共价复合物；电喷雾质谱；解离常数

Key words thin-layer pH-chromatography;ionization constant;organic acid

如果当固定相的［H+］＞＞Ka时，则Ka/［H+］可忽略，这样即可得到Rf值的极限值

In order to analyze the thermal cracking products of fuels, we set up a GC analytical system. The gas products, which comprise methane, ethane, ethylene, propane, propylene and other gases, were collected and analyzed by gas chromatography provided with a flame ionization detector . We calculate the theoretical heat sink of n-heptane at the temperature of 600℃ and 800℃. The theoretical heat sink calculation of iso-octane at 700℃ is also related.

建立了用于分析裂解产物的气相色谱分析系统，解决了本研究中对气态裂解产物的分析要求，特别是气态小分子饱和烃和不饱和烃的有效分离；并根据裂解产物的组成及其生成热数据，对正庚烷在600℃和800℃，异辛烷在700℃时裂解的热沉进行了理论计算。

K shell ionization cross sections of Ti and V elements from the measured result of K α X rays using the spectrometer are derived.

电子碰撞引起原子内壳层电子电离截面的研究是现代原子分子物理的基本问题之一，也一直是实验和理论工作者关注的课题。

The coronal green line, for example, came from the 'forbidden line' of iron-14, written , iron stripped of 13 of its 26 electrons (neutral iron is Fe I, so the Roman numerals exceed the ionization number by 1), which would require such a high temperature that the corona must be at millions of kelvins.

例如日冕谱线中那条绿线，来自铁-14

The morphology of dispersive emulsion particle was observed by SEM.The results showed that the moderate amount of surface carboxyl groups and ionization carboxyl were available to the improvement of water resistance of latexes.

SEM结果表明羧酸改性后的乳液微观分散状态良好，适度的表面羧基密度和适量的离子化羧基对提高乳液的湿强度是有效的。

Options include AC servomotor instead of air brake at unwind to permit processing of very thin films and foils, ionization bars to reduce static, individual lay-on rollers and a slit roll unloading system with a stand.

选项包括交流伺服电机而不是空气制动在放松，以许可证的处理非常薄膜和金属箔片，电离酒吧，以减少静态的，个别的裁员对辊和狭缝辊装卸系统与立场。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。