查询词典 dimethyl ether

GC/MS analysis on the leaf oil indicated that the main components with a relative content of ≥3% were alloocimene (43.22%),α-pinene (13.63%),γ-terpinene (5.49%),-3, 7-dimethyl-, 2, 6-octadien-1-ol (3.58%),β-fenchyl alcohol (4.58%), and 2-amino-3, 5-dicyano-6-(4-methoxyphenoxy)-pyridine (3.67%).

用GC/MS联用方法，对巨尾桉挥发油进行鉴定，相对百分含量在3%以上的化合物有：α-蒎烯(13.63%)、别罗勒烯(43.22%)、γ-萜品烯(5.49%)、3，7-二甲基－2，6-辛二烯醇(3.58%)、β-小茴香醇(4.58%)和2-氨基－3，5-二氰基-6-（4-甲氧基苯氧基）－吡啶(3.67%)。

The calixarenes used as PTC in the fluorination of tetrachlorophthahaloyl chloride to obtain dimethyl tetrafluoroterephthalate were studied in this paper.

研究了杯芳烃在四氯对苯二甲酰氯氟化制备四氟对苯二甲酸二甲酯反应中的相转移催化作用，发现以杯芳烃作相转移催化剂使产品收率得到了明显提高。

In order to recover dimethyl formamide, a gas chromatographic method with thermal conductivity detector for its determination has been established.

建立了用于回收二甲基甲酰胺的气相色谱测定方法。

Corn starch were treated with different dispersant agents including water, alcohol and dimethyl formamide by microwave at different temperatures.

采用微波辐射的手段处理原玉米淀粉，考察了分散剂种类，淀粉与分散剂的质量比及微波处理的温度对淀粉非晶化的影响。

The causing agents which have been documented in Taiwan included tetrachioroethane, carbon tetrachloride, dimethyl formamide and chloroform.

中毒性肝炎是最常见的职业性肝脏疾病，被报告的肝脏毒物包括四氯乙烷、四氯化碳、二甲基甲醯胺和氯仿。

In this work, we also presented some methods to determine kinetic parameters for the different systems and examplified by the reduction of thionyl chloride in dimethyl formamide.

根据我们提出的判定反应可逆性的方法，系统地对EE反应机理进行了探讨，从中可方便地判定EE反应的不同反应机理；对不同的反应机理，相应地又提出了测定其电极反应动力学参数的方法，并以亚硫酰氯的还原为例进行了研究及测定。

This is essentially a process where the polymer solution generally in dimethyl formamide is brought up to a temperature close to the boiling point of DMF and is then extruded under pressure through spinneretes.

其基本原理是处于二甲基甲酰胺中的聚合物溶液被加热到二甲基甲酰胺的沸点，然后在一定的压力下通过喷丝头。

N, N dimethyl formamide was used as extractant.

该方法具有快速、灵敏，其他常见色素不干扰测定的优点。

This is essentially a process where the polymer solution generally in dimethyl formamide is brought up to a temperature close to the boil ing point of DMF and is then extruded under pressure through spinneretes.

其基本原理是处于二甲基甲酰胺中的聚合物溶液被加热到二甲基甲酰胺的沸点，然后在一定的压力下通过喷丝头。

Catechins were separated and detemined by linear gradient elutions for the rate of flow and concentration, with water, methanol, formic acid and dimethyl formamide as mobile phase.

在选定的色谱条件下每种成分在各自的浓度范围内均具有较好的线性关系，样品的回收率为93 65%～98 95%，相对标准差为0 69%～2 26%。

Methods Clinical data of 3 cases of bile duct injury during laparoscopic cholecystectomy were analyzed retrospectively.

回顾总结3例LC术中胆管损伤的临床资料，分析3例胆管损伤的原因及对策。

These techniques are applied to the gobang.

本文将这些技术用于五子棋中。