盐酸

First, combined with the corrosion mechanism of carbon steel in chlorhydric acid, the relation between inhibition efficiency and molecular structure of inhibition of carbon steel in chlorhydric acid by benzene nitriles are developed in terms of Hansch Relation.

最后，运用灰色理论，通过建立苯腈类化合物在盐酸溶液中对碳钢缓蚀的缓蚀性能与分子结构关系的灰色缓蚀模型，研究了苯腈类化合物在盐酸溶液中对碳钢缓蚀的缓蚀性能与分子结构的关系。

We extract the lipid with hexane and then compare the removing effect of 20% trichoroacetic acid and 2.0mol/L chlorhydric acid after having condensed the extract.

将提取液浓缩后，利用正己烷萃取提取液中的脂溶性物质，然后分别测定在浓缩物中加入不同体积的20％的三氯乙酸及2mol／L的盐酸的除蛋白效果，结果显示盐酸为较佳的除蛋白试剂。

For usual acid"s leaching out efficiency is low for Gallium in fly ash, we did some analysis on fly ash which drew out or not through X-ray, electron probe, and scan electron microscopy chlorhydric acid .And those analysis gave us rational explain that the low leaching out efficiency for Gallium from fly ash with chlorhydric acid"s draw out juice.

针对常规酸对粉煤灰中镓浸出率偏低这一现象，我们通过X-射线、电子探针和扫描电镜对盐酸浸出反应前后粉煤灰的分析，对盐酸浸出粉煤灰中镓的浸出率低作出了合理的解释。

Does Huazhong University of Science an Technology have studying clinically with helping medical college middle applying to fibre laryngoscope go over to chlorhydric acid Dingkayin glue thick fluid?

华中科技大学同济医学院对盐酸丁卡因胶浆在纤维喉镜检查中应用有临床研究吗？华中科技大学同济医学院对盐酸丁卡因胶浆在纤维喉镜检查中应用有临床研究吗？

Then, inhibition mechanism and the relations between inhibition efficiency and molecular structure of inhibition of carbon steel in chlorhydric acid by benzene nitriles and quaternary ammonium salts are studied from microscope through quantum chemistry calculation, and according to the results, theory predicting and proof testing of a benzene nitrile (2-benzo butyl nitrile) are made.

利用Hansch关系的研究结果表明，苯腈类化合物在盐酸溶液中对碳钢缓蚀的缓蚀效率，可用苯腈类化合物氰基氮原子的净电荷密度和分子最高占据轨道能量或分子最低空轨道能量构成的表达式表达。量子化学计算研究结果表明：1、苯腈类化合物在盐酸溶液中对碳钢缓蚀的缓蚀机理可能是：苯腈类化合物分子以其氰基氮原子上的电子提供给铁的3d空轨道，形成配位键；同时铁的3d轨道上的电子提供给苯腈类化合物分子的能量最低空轨道，形成&反馈键&。

Preparation of the cathode includes:shaping under the press of 40Mpa, sintering at 550℃for 1 hour and at 900℃for 8 hours and threading with molybdenum bar; Considering the literatures we choose CaCl2 as salt for preparation titanium. Pretreatment of salt is for 1 hour at 100℃and for 2 hours at 300℃. Partial pressure of oxygen which need lower than 5.11×10-7Pa to reduct titanium oxides and hygroscopic property of salt need a sealed equipment to electrolyse. And finally successfully designed a satisfied one and the results show that the equipment can be satisfied the requirment of the experiment. Flow of the inert gas is 1.5L/min, the voltage is 2.8 V, temperature is 850℃and time is 2 hours during pre-electrolysis. Flow of the inert gas is 0.2L/min, the voltage is 3.1 V, temperature is 900℃and time changes with the mass of TiO2 during electrolysis, namely the greater need the longer time; To eliminate influence of salt and other impurities, the products need to wash with distilled water and dilute chlorhydric acid , then wash with dilute hydrochloric acid under supersonic wave assistant. Finally, electrometical properties of the electrolysis of TiO2 is researched by cyclic voltammetry and chronoamperometry, and results show that there are two main reodox steps, namely from TiO2 to TiO and from TiO to Ti.

阴极制备主要包括40MPa压力下模压成型、两段式烧结(1小时内升至550℃保温1小时，再1小时升温至900℃保温8小时)及烧结后TiO2块打孔用钼棒串接三个主要环节；实验中选用CaCl2作为电解熔盐，并对其进行预处理(100℃，保温1小时； 300℃，保温2小时)；经热力学计算，还原钛氧化物的氧分压至少要低于5.11×10-7Pa，结合电解过程中所用熔盐CaCl2有极强的吸水性的特点，电解装置应有较高的密封性，自行设计了一套密封性可靠的电解装置，便于实验过程中熔盐预处理和氧分压的控制；通过干燥处理预电解过程中Ar流量大约为1.5L/min、电压为2.8 V、温度为850℃、时间为2小时，电解过程中Ar流量大约为0.2L/min、电压为3.1V、温度为900℃，实验结果表明电解时间与TiO2质量密切相关，质量越大需要电解的时间越长；通过自来水冲洗—稀盐酸浸泡、洗涤—在超声波辅助作用下稀盐酸洗涤，可减少熔盐及其它杂质对电解产物检测结果的影响；最后，通过循环伏安法、计时电流法对电解机理的研究，确定电解还原TiO2制备金属钛主要经历了TiO2-TiO-Ti的过程。

Toxicity and repellent activity of several plant-based compounds on Blattella germanica were studied, results showed that rotenone, toosendanin and azadirachtin had stomach toxic effect on Blattella germanica, rotenone showed high stomach toxicity and all insects died after 8 hours, matrine also has deformative effect on Blattella germanica , matrine and toosendanin can affect oviposition of Blattella germanica; repellent activity of these botanicals was further studied, results showed that bering hydrochloridum, azadirachtin and sparteinehave had repellent activity against Blattella germanica, observation also showed that rotenone and bering hydrochloridum had high contact toxicity against Blattella germanica, the time of all insects knocked down were 8 and 48 hours.

选取了7种植物源化合物，测定了它们对德国小蠊的毒性和驱避性，结果表明，鱼藤酮、川楝素和印楝素对德国小蠊具有不同程度的胃毒作用，其中鱼藤酮乙酸乙酯溶液作用较强，8小时死亡率已达100％，川楝素和印楝素对德国小蠊也表现出一定的毒杀作用，观察还发现印楝素和苦参碱对德国小蠊的发育有致畸作用，苦参碱和川楝素影响其卵鞘形成；进一步对这几种化合物的驱避性进行研究，结果表明盐酸黄连素、鱼藤酮乳油和印楝素乳油对德国小蠊有不同程度的驱避作用，其驱避率分别为96.7％、51.3％和50.1％，另外观察到鱼藤酮乙酸乙酯溶液和盐酸黄连素对德国小蠊具有较强的触杀活性，供试虫全部被击倒的时间分别为8小时和48小时。

The effects of ,, and temperature on the distribution ratio have been investigated. The composition of the extracted species is determined by the methods of slope ratio, continuous variation,extraction isotherm curves and their chemical analyses. The extraction is found to proceed according to the reaction:AuCl_4 ~-+DEOTA_(0)TAuCl3 .DEOTA_...

着重研究了盐酸浓度、氯离子浓度、氢离子浓度和温度诸因素对萃取的影响；对有机相中金的反萃行为也进行了初探；通过斜率法、等摩尔系列法、萃取等温线法确定了配合物的组成；推定了DEOTA在盐酸体系中萃取金的机理为配位取代反应；计算了萃取反应的表观平衡常数和配合物的稳定常数。

Objective To establish a method for determination of amiodarone hydrochloride dispersible tablets with HPLC.

目的 建立盐酸胺碘酮分散片中盐酸胺碘酮含量测定方法。

Be like: Predestined relationship of ⑿ of Yong of ㄑ buzzing Yi suckles the dug of arrogant?CO2 and NaOH solution reaction, content of the O2 in air measures decided experimental dug, hydrochloric acid makes purple Shi Rui tries the dug with erubescent fluid to wait.

浓盐酸挥发性的探究，CO2和NaOH溶液反应的探究，空气中O2含量测定的实验探究，盐酸使紫色石蕊试液变红的探究等。

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。