查询词典 tetrachloromethane

Results: The correlation coefficient was 0.999, RSD 2.1%~4.4%, the average recovery rate of chloroform and tetrachloromethane 85.2%~95%.

结果：标准曲线的相关系数为0.999，相对标准偏差为2.1%~4.4%，三氯甲烷、四氯化碳的平均回收率85.2%~95%。

The research dealt with the availability of dechlorination by zero-valent iron, optimization of the main factors on the dechlorination, options of the catalyst, kinetics of the dechlorination of chloroform, the effects of neutralization and flocculation on the removal of chloroform and tetrachloromethane, and so on.

实验研究的主要内容包括：金属铁还原脱氯的有效性，金属铁还原脱氯工艺主要参数的确定和优化，无机催化剂的筛选及其催化脱氯的效果，氯仿脱氯动力学，中和和絮凝过程对去除有机氯的影响等。

While the temperature ranged from 25 ℃ to 45 ℃, the removal efficiencies of the chloroform in the composite wastewater was only between 60% and 85%, while the tetrachloromethane removal efficiencies was 90%. After zero-valent iron dechlorination, the calcium carbide residue was applied for neutralization.

在此条件下，温度范围为25℃—45℃，单组分模拟废水—三氯甲烷的去除率为60%—85%，双组分模拟废水—三氯甲烷的去除率为75%，四氯化碳的去除率为90%。

The reaction of tetrachloromethane with magnesium under general Grignard reaction condition was studied.

林海霞，徐良衡，黄乃聚，四氯化碳与镁的反应及其反应机理的研究──产生二氯卡宾的新方法

The effects of four different solutions (methanol, ethanol, chloroform, and tetrachloromethane) for the extraction of paeonol were investigated. With the consideration of toxicity, extraction ratio, and the influence on separation, methanol was selected as extractant.

考察了甲醇、乙醇、氯仿、四氯化碳4种溶剂提取丹皮酚的效果，综合考虑提取剂毒性、提取率和对分离的影响，选择甲醇作提取剂。

The results showed that the resistant property to high temperature will be increased as the content of hollow glass-bead increased, flame-retardant effect was evident as the content of fire retardant A was above 20%, tetrachloromethane was the best one as single solvent, and the amount of plasticizing agent was usually at the range of 5%~8

结果表明，随着中空玻璃微珠含量的增加，涂层材料的耐温性能有所提高；阻燃剂A的含量在20%以上时，阻燃效果非常明显；四氯化碳是单一溶剂的最佳选择；增塑剂用量一般控制在5%~8%。

The used ionic liquids can be regenerated by rotary evaporation or re-extraction using tetrachloromethane.

BPyBF4对模型化合物单程脱硫率达到45.5％，可以有效地脱除汽油中的含硫化合物，使用过的离子液体可以通过真空加热或用四氯化碳反萃取再生。

We studied chemical reaction between nitrogen oxides with dichloromethane, trichloromethane, tetrachloromethane and 1, 2-dichloroethane by Laser Magnetic Resonance.

用激光磁共振方法研究二氯甲烷、三氯甲烷、四氯甲烷、1，2-二氯乙烷与氮氧化物在火花放电、紫外光照射条件下的化学反应。

Highly toxi c solvents benzene,tetrachloromethane,methanol were replaced by toluene,1,2-di c hloroethane,ethanol in the course of reaction and purification.

甲基 2 ，1，3 苯并噻二唑的溴化改在低毒性的 1，2 二氯乙烷中进行，革除了高毒性的四氯化碳。

The binary complex of Al-DNAs then interacts with tetraphenylporphyrin in tetrachloromethane, forming a ternary complex of TPP-Al-DNAs.

该复合物469nm产生强烈增强的BRLS信号，并且I_正比于ctDNA和fsDNA的浓度，可用于灵敏的测定核酸，方法的检出限在皮克级。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。