查询词典 chemistry

Both methods combined the magnetic microspheres technology with hydrazide chemistry and Lectin, respectively. The hydrazide-functionized magnetic microspheres and GNA-functionized magnetic microspheres are prepared correspondingly. The condition for capturing glycopeptides by hydrazide-functionized magnetic microspheres and immobiling GNA onto the magnetic microspheres was evaluated and optimized, and the specificity and validity of two methods was demonstrated by using standard glycoproteins sample.

试验中分别将肼化学和凝集素与磁性微粒相结合，分别制备出了肼功能化磁粒和GNA功能化磁粒，优化了肼功能化磁粒富集糖肽的条件和GNA固定的条件，并通过标准蛋白样品对两种方法的富集特异性和有效性进行了验证。

SCE for dihydroartemisininoxy benzoic acid hydrazide at Ag electrode BR buffer solution containing 20% ethanol(V/V, pH 7.2) using electroanalytical chemistry method.

在含20%乙醇的BR缓冲溶液（V/V， pH＝7.2）中，利用电分析化学方法测得双氢青蒿素氧基苯甲酰肼(dihydroartemisininoxy benzoic acid hydrazide， DBAH)在银电极上于－0.66 V

A quantum chemistry calculation for the crystal structure of 4- benzaldehyde-2,4-dinitro phenyl hydrazone was performed by using Gaussian98 with B3LYP/6-31G basis sets.

利用Gaussian98程序，采用密度泛涵方法(B3LYP/6-31G)对4-苯甲醛缩-2，4-二硝基苯腙化合物的晶体结构进行了量化计算，利用相关参数推测了它的分子特性，结果表明，该化合物的分子结构为一大平面结构，难与金属形成配合物

The development of metal hydride chemistry in China has been reviewed in the present paper.

综述了我国金属氢化物化学的发展。

The results showed that hydrogen sulfide system was important in inorganic chemistry.

讨论了硫化氢系统分析法的理论基础、分组方案和操作步骤，并对硫化氢系统分组进行了理论探讨，从而说明了硫化氢系统在无机化学中的重要性。

The recent growing up of chemistry of hydrogenases, especially the Fe-only hydrogenase have renewed interest in classical organometallic diiron dithiolate complexes.

近几年发展起来的氢化酶化学，尤其是唯铁氢化酶活性中心的化学模拟研究，把铁硫簇化学的研究推向了又一高潮。

Abundant data of hydrography, chemistry and biology were gained, based on which the behaviour and biogeochemical characteristics of DIC in seawaters of these two areas were investigated.

作为地球表面最大的碳库，海洋在全球碳循环中发挥着重要作用，并在一定程度上决定了全球气候变化与全球海洋生态系统的变化走势。

Through different years management, the bamboo forest land soil chemistry nature shows different characteristic .Along with management years increase, soil's pH value go down ; The soil's OM, TN and the hydrolyte N all drops; The soil total P and the available K drops at first ,then go up.

4不同经营年限毛竹林地土壤化学性质变化特点：随着经营年限的增加，土壤pH值变化表现为下降趋势；土壤有机质、全氮和水解氮变化总体下降；土壤全磷和速效钾表现为先下降后上升趋势。

Oxidation of arsenic in solution to arsenic, and reduction of arsenic to arsenic have been investigated as part of the overall chemistry relating to hydrometallurgy.

3价砷的氧化物在溶液中变成＋5价砷，并且＋5价砷的减少变成＋3价砷也已经作为所有有关湿法冶金法的化学作用的一部分被研究。

Therefore, we started hydroxy benzene acetic acid and acetic acid coordination unit for the nodes of copper, cobalt, cadmium, manganese, zinc coordination polymers of structural chemistry studies.

因此，我们开展了苯羟基乙酸和苯氧乙酸配位单元为节点的铜、钴、镉、锰、锌配位聚合物的结构化学的研究。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐