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At the same time, addition of H3PO4 helped to inhibit the ammonia oxidation at high temperature.

同时，磷酸的加入有助于抑制高温下氨氧化反应的发生。

In this paper,3-methoxy-5,6-diamino-2-nitropyridine was synthesized from 3,5-dichloropyridine by substitution,oxidation,nitration and ammoniation .

研究了以3-氯-5-甲氧基-2，6-二硝基吡啶为原料，通过甲氧化、硝化、氨化合成3-甲氧基-5，6-二氨基-2-硝基吡啶，该化合物的结构通过IR，1H NMR，MS和元素分析进行了表征，确认为目标化合物。

The route include three steps: etherification, ammoniation and then oxidation. Factors such as chloracetate, reaction temperature on process were studied. And discussed the ionic liquid was recovered.

讨论了不同的氯乙酸酯和反应温度对醚化反应收率的影响，讨论了不同的二苯甲硫乙酸酯对氨解反应收率的影响，及离子液体的回收使用。

A novel synthetic approach of 3,3'-azobis(6-amino-1,2,4,5-tetrazine) was firstly devised. Taking 3,6-bis(3,5-dimethylpyrazol-1-yl)-1,2,4,5-tetrazine as a primary material, DAAT was synthesized by high pressure ammonolysis and potassium permanganate oxidation. Compared with the four-step reaction in the literature, this new approach was reduced to two steps with a yield of 58.1%. The intermediate and DAAT were characterized by elemental analysis, IR and NMR spectra.

自行设计了3，3'-偶氮双(6-氨基-1，2，4，5-四嗪)新合成路线、采用3，5-双(3，5-二甲基吡唑-1-基)-1，2，4，5-四嗪为原料，由文献报道的4步反应缩减为2步，经高压氨解、高锰酸钾氧化合成了DAAT，总收率大幅提高，达到58.1%，并采用元素分析、红外光谱、核磁共振光谱等进行了结构表征。

Since the production of carbon nanotubes synthesized by arc-discharge method contains impurities such as carbon nano-particles, amorphism carbon and graphite fragment, several purification methods were used to purify carbon nanotubes. It is found that with oxidation method in air, we can easily get purified carbon nanotubes.

由于用电弧放电法合成出来的纳米碳管产物中除了有纳米碳管外，还含有一些纳米石墨颗粒、无定形碳和石墨碎片等，因此本文对用电弧放电法合成出的纳米碳管进行了多种方法、探索性的提纯研究，实验结果发现，利用大气氧化法对纳米碳管进行提纯效果好，设备简单，是一种方便实用的方法。

The results reveal that raw materials and oxidation conditions have influence on the properties of AMP.

结果表明：原料和工艺条件对水性中间相的性能有较大影响。

There is a large difference in Fe oxidation states of the amphibole between the directly measured and indirectly calculated methods.

应用这一方法直接测定了相互连生的一对闪石和辉石中Fe氧化态的定量值。

Hopefully they are now protected from further oxidation by the argon atmosphere inside the ampoule.

希望他们现在免遭进一步氧化，在充满氩气气氛安瓿内存。

Meanwhile,anatase form of TiO_2 thin films were prepared by anodic oxidation of titanium plates.

首先通过高温热解的方法合成了不同尺寸的CdSe量子点。

The results shows that the REE of Shuixigou Group came mostly from andesite and granite in the denudation zone,but did not originate from basalt.The pH values of the interlayer oxidation rock zone and the primary reduction rock zone are similar,and those of ore zone are lower than the other two zones.

伊犁盆地南缘乌库尔其地区流体和岩石的 pH值分布情况表明，层间氧化岩石带和原生还原岩石带的 pH值相似，而矿石带的 pH值偏低，这与在偏碱性条件下， REE和 U的络合物容易形成，并且 REE和 U的络合物随着 pH值的降低而迁移和沉淀富集是相吻合的。

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。