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With this standard method, simultaneous quantification of DMC, MPC, DPC, phenol and anisole can be achieved accurately, which provide the standard methods for evaluation of different catalysts and control of the reaction process. The microwave-aided catalytic technique was applied in the transesterification of DMC and phenol.

分别以苯甲酸乙酯和丙酮为内标物,实现了对酯交换反应塔釜产品和塔顶馏分的同时定量,为评价催化剂活性的高低和工艺条件的优劣提供了标准化分析方法。

All characters encoded with the %xx hexadecimal form are replaced by their ASCII character set equivalents.

所有的个性改为暗码由于那%xx 十六进位形式被他们的美国信息交换标准代码个性组合同等物代替。

MATERIALS AND METHODS: Formaldehyde, an oxidative deamination product of methylamine, was analyzed by HPLC.

材料与方法:利用弱阴离子交换柱层析分离兔血浆蛋白,测定各收集组分的SSAO酶活性;以甲胺为底物测定SSAO酶动力学参数。

Some of the complexes withβ-diketone derive ligands, which potential applicated in optical, electricity, magnetism, absorption, catalysis, ion exchange, gas storage and so forth.

此类配体所构筑的各式各样的配合物在光、电、磁、吸附、催化、离子交换、气体储存、分子载体、生物活性、荧光器件材料等方面具有一定的应用价值。

A mass of DMO in the transesterification course inhibited the disproportionation which has a small equilibrium constant. As a result, selectivity and yield of DPO were low.

酯交换反应中由于反应物DMO的大量存在阻碍了平衡常数较小的歧化反应的进行,使得DPO选择性和收率较低。

The method of ferricyanide elution was explored.This paper aims to provide foundation of theory and technology for industry application.

研究了声场强化对离子交换纤维吸附性能的影响,探索了铁氰络合物解吸的途径,旨在为工业应用提供理论和技术支撑。

Acetone extractives in masson pinegroundwood pulp were isolated and analyzed through the employment of DEAE-Sephadex ion exchange chromatography and GC/MS.

利用DEAE-Sephadex离子交换色谱和气相色谱-质谱联用技术,对马尾松磨木浆丙酮抽出物的化学成分进行了分离及分析。

The dynamics of the adsorption of ferricyanide with strong base anion ion exchange fiber by static method was dealed with in the paper, and the adsorptive isotherm was plotted, in addition, the adsorptive thermodynamic and kinetic parameter were measured.

采用静态法进行实验,考察了强碱性阴离子交换纤维吸附铁氰络合物的动力学行为,绘制了吸附等温线,测定了吸附过程的热力学和动力学参数。

To begin with, he regarded fetishism as the problem of civil society.

第二阶段,他认识到物是生产关系和交换关系异化的产物。

His story begins with Sumerian farmers who realised, some time in the third millennium BC, that the surpluses of grain generated within Mesopotamia's fertile crescent could be used as barter for things they did not have.

他的故事开篇描述的是大约在公元前3000年间,苏美农民意识到在美索不达米亚平原新月沃地上产出粮食的剩余部分可以用来进行物物交换,以获得自己没有的东西。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。