甲醇

Successful separation of Cd-pheophytin a, Cd-pheophytin b, chlorophyll a, chlorophyll b, pheophytin a and pheophytin b in 14min was firstly accomplished by reversed-phase HPLC at a flow rate of 0.8ml/min, with the mobile phase of methanol: acetone (80: 20, v/v).

首次以甲醇：丙酮＝80：20为流动相，流速为0.8ml/min，在C〓柱（5μm，4.0×250mm）上，14min内成功实现了镉叶绿素a和镉叶绿素b配合物与叶绿素a，b和脱镁叶绿素a，b的高效液相色谱分离。

Results:The mobile phase consisted of methanol-0.2% phosphatic acid (50∶50) with flow rate 0.4 mlmin1 and column temperature at 35℃.

结果：色谱条件为流动相甲醇0.2%磷酸溶液(50∶50)，柱温为35℃，流速0.4 mlmin1。

When substituting MeOH for MeONa on above technology, however, the methyl ester phosphinic acid with double melting points was also obtained, and its crystal phase was clearly different from its counterpart with single melting point.

若将10-羟基-5，10-二氢磷杂吖嗪-10-氧化物和氯化亚砜的作用产物直接在甲醇溶液中回流，也得到双熔点甲酯，它与单熔点次膦酸甲酯具有不同的晶相结构。

Silica ; Phosphomolybdic acid ; Methanol ; Decomposition reaction ; Laser stimulated surface reaction ; Laser parameter

二氧化硅；磷钼酸；甲醇；分解反应；激光表面反应；激光参数

There are several references has been reported to reveal that adding phosphomolybdic acid hydrate PMo12 in the electrode of proton exchange membrane fuel cells and direct methanol fuel cell could promote performance.

目前已有相关研究发表将磷钼酸触媒(PMo12)应用於质子交换膜燃料电池以及直接甲醇燃料电池之电极触媒以提升电池效能。

The results show that the three kinds of heteropolyacid modified platinum electrodes have the higher electrocatalytic activity to methanol oxidation, PMnMo11 modified platinum electrode has the highest electrocatalytic activity. Meanwhile the anti-poison effect to carbon monoxide of platinum electrode can been improved by modification of transition metal substituted phosphomolybdic acid.

结果表明，三种过渡金属取代磷钼酸修饰铂电极均能够提高铂电极的催化活性，其中PMnMo11修饰铂电极对甲醇的催化活性最高，同时铂电极经三种过渡金属取代磷钼酸修饰后抗一氧化碳毒化能力增强。

Methods: HPLC was performed on Kromasil C18 column with methano1water phosphonic acid (40∶60∶0.2) as mobile phase.

采用Kromasil C18柱，以甲醇水磷酸（40∶60∶0.2）为流动相，检测波长280 nm。

Because the tungsten from the phosphotungstic acid could pull out and deposit on the surface of catalyst, and the electronegativity of Mo-O is smaller than that of W-O.

最后，根据杂多酸的结构和相应的物理化学性质，对杂多酸与铂基催化电极电催化氧化甲醇的机理进行了初步探讨。

Benzyl acetate was synthesized from acetic acid and benzyl alcohol as raw materials with phosphotungstic acid as catalyst.

介绍了以冰乙酸和苯甲醇为原料，采用磷钨酸作催化剂合成乙酸苄酯的方法，考察了反应物醇酸摩尔比、催化剂用量、带水剂用量、反应时间、带水剂品种、催化剂重复使用对酯化率的影响。

After that, we use TLM, which possess more sensitive property to UV light. With different concentrations, alcohol solvents, and concentrations of 20% MeOH/H2O, to look forward to find out the exact photokinetic model of TLM.

而后再以光动力学反应较快之托美丁以不同浓度、不同醇类溶媒、不同含水的甲醇溶液以期盼研究出托美丁的光动力学模式。

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。