查询词典 methanol

Their micrographs, structure, properties and applications have been investigated by Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray spectroscopy, cyclic voltammetry, chronoamperometry and polarization method, etc. The main points of this dissertation are summarized as follows:(1) Nafion - thionine ion-pair as dispersant and second catalyst was introduced into the preparation of Pt catalyst for methanol electrooxidation and the resulted catalyst supported on carbon was investigated by electrochemical methods.

本论文主要研究有机化合物(染料、Nafion、脂肪胺、芳胺等)对DAFC电催化剂或载体的改性，通过傅立叶变换红外光谱、扫描电子显微镜、透射电子显微镜、X射线能量散射谱、循环伏安法、电化学阻抗、计时-电流法、Tafel极化曲线等分析测试技术，对电催化剂、电极的形貌、结构、物理化学性质等进行了详细研究。

Keywords amino acid methyl ester hydrochloride;amino acids;methanol solution of thionyl chloride;thionyl chloride;synthesis

氨基酸甲酯盐酸盐；氨基酸；二氯亚砜-甲醇溶液；二氯亚砜；合成

Repeat the procedure with a second portion of methanol, or other suitable solvent, accurately measured, add this washing to the titration vessel, and immediately titrate.

用第二部分的甲醇或其他合适的溶剂重复上述操作，准确测量，将这一部分洗涤物加至滴定容器中，立即滴定。

In this way, we can get the optimum parameters which are ip = 100mA/cm2, ton/toff = 0.1s/0.5s, and loading capacity 6C/cm2. This result is suitable for both the hydrogen adsorption and the methanol oxidation.

发现脉冲参数控制在ip=100mA/cm2、ton/toff=0.1s/0.5s、通电量6C/cm2时，不论是氢的脱附或甲醇的氧化，该电极触媒活性表现均最佳。

Methods: Glipizide gliclazide glyburide glimepiride gliquidone repaglinide nateglinide pioglitazone rosiglitazone metformin phenformin and tolbutamide added in the blank ground samples were extracted with 80% methanol and were separated from an ACQUITY UPLC DBH C18 column with a gradient mobile phase of acetonitrile - 0.2 % formic acid water solution. A tandem quadrupole mass spectrometer equipped with electrospray ionization source was used in positive ion mode multiple reaction monitoring was performed to quantify above mentioned compounds.

被添加在中成药制剂及其包装物中的二甲双胍、苯乙双胍、罗格列酮、吡格列酮、格列吡嗫娶瑞格列奈、甲苯磺丁脲、格列齐特、格列苯脲、那格列奈、格列美脲、格列喹酮等西药成分用80%甲醇提取，以乙腈- 0.2%甲酸水溶液为流动相梯度洗脱，在ACQUITY UPLC DBH C18色谱柱上分离，串联四级杆质谱检测，MRM方式采集并定量。

This method can be used to determine the residue level of methanol, ethanol and toluene in aniracetam.

本方法可用于茴拉西坦中甲醇、乙醇和甲苯的残留量测定。

Dynamic response of direct methanol fuel cell is very important for the transportable applications.

直接甲醇燃料电池用作移动电源时，电池的动态响应特性特别重要。该文作者利用自行设计的直接甲醇燃料电池测试系统对一有效面积为 50cm2 的直接甲醇单体燃料电池的动态性能进行了实验研究。

Influences of derivatization condition are analyzed,such as concentration of boron trifluoride in the solution of methanol,reaction temperature and the reaction time.

阐明三氟化硼在甲醇中的浓度、反应温度和反应时间对衍生化效果的影响。

Treat each flask as follows. Add 5.0 mL of a solution prepared by dissolving 14 g of boron trifluoride in methanol to make 100 mL, swirl to mix, and reflux for 15 minutes or until the solid is dissolved.

在每一个锥形瓶中，加5.0mL三氟化硼溶液（取14g三氟化硼，用甲醇溶解并稀释至100ml），搅拌使混合，回流15分钟或直至固体物溶解。

When the ratio of methanol to oil is higher than 6, the tung oil transformation ratio improved slightly.

结果表明，当甲醇和油脂的物质的量之比超过6：1后，桐油转化率提高范围很小。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。