ammoniu相关论文
Gold solvent extraction has been used to recover gold by analytical chemists for about one century. Due to the potentia......
The effects of different structures of 2: 1 layer minerals, layer charge location, and changes of structure and charge ......
The orientation of HDTMA+ in the interlayer of organic pillared montmorillonites prepared at different concentrations of......
Two soils, one consisting of 1:1 clay minerals at pH 4.5 and the other containing 2:1 clay minerals at pH 7.0, were used......
Selenium is an essential functional element of the human body,and the issue of selenium accompanying heavy metals is rec......
To study effect of C2H2 and change of headspace gas on N2O emission, denitrification, as well as CO2emission, slumes of ......
Starting from shikimic acid, the total synthesis of zeylenone was studied. The productwas proved to be the (+)antipode ......
Preparation and Characterization of CeO_2-ZrO_2 Solid Solution Ultrafine Particles Using Reversed Mi
Ce_(0.6)Zr_(0.4)O_2 solid solution ultrafine particle was prepared in the cyclohexane/water/OP-10/n-hexanol reversed mic......
The study on the forms and transformations of aluminum in soils has received great at-tention at home and abroad with r......
A novel cross-linking process using two high molecular weight aromatic poly(thioether)s,which were synthesized by the re......
Sulfonylurea herbicides have been widely used because of their low application rates,good crop selectivities and low mam......
Effects of nitrogen form on growth,CO_2 assimilation,chlorophyll fluorescence,and photosynthetic ele
Cucumber and rice plants with varying ammonium (NH4+) sensitivities were used to examine the effects of different nitrog......
将安息香与十二水合硫酸铁铵在稀醋酸中回流70min得苯偶酰，收率86%～95%。...
报道了精制ＴｉＣｌ４水解制备电子陶瓷用高纯微细ＴｉＯ２过程中，偏钛酸中ＮＨ４Ｃｌ对产物理化性能的影响。考察了工艺过程中滤液循环使用的可行性和对偏钛酸煅......
本文研究了烯二酸二乙酯与脂肪酸地过二硫酸铵及催化量的硝酸银作用下的自由基加成反应，合成了一些酯的衍生物。......
以黑龙江省肇州县碳酸盐草甸土为研究对象,针对该区域土壤盐碱化现象严重,土地生产力低下以及水资源缺乏等情况,开展基于水盐调控......
通过溴化铵在线合成杀菌剂的试验，在满足生产要求的前提下，探索杀菌剂最佳加入点和加药量，对使用前后的效果进行了对比分析。......
本文用正交试验研究了乙醇沉淀法和硫酸铵盐析法提取免疫球蛋白的条件，简化了传统的工艺流程，比较两种方法的优劣，确定用乙醇沉淀法提......
通过构建氨氧化细菌（AOB）和氨氧化古菌（AOA）的氨氧化酶基因亚基A（amoA）克隆文库，并采用限制性片段长度多态性（Restriction Fragment Length......
Capillary electrophoresis (CE) has rapidly gained great interests among researchers in many different fields. One of the......
硫酸铁铵能够代替硫酸用作酯化催化剂。研究了NH4Fe(SO4)2*12H2O催化合成乙酸环己酯的反应条件，当乙酸、环己醇和硫酸铁铵的摩尔比......
以N2为载气，PCI5气态进料，与NH4Cl在惰性有机溶剂中催化反应合成了六氯环三磷腈（CTPP）。较佳工艺条件为：PCl5用量23．1g、n（PCl5）：n（NH4Cl）=1：1,......
为了解决铵盐对测定硼酸的干扰问题,制定了测定氯化物型三价铬镀铬液中硼酸的新方法。用草酸钾掩蔽Cr~（3＋）和Fe~（3＋）离子。用甘露醇与硼......
目的探讨培菲康对硫代乙酰胺（TAA）引起的大鼠肝性脑病（HE）模型的作用及其机制。方法利用大鼠TAA HE模型，观察活菌制剂培菲康对HE大鼠神......
介绍了连续重整装置2014年检修后，重整进料换热器冷流端压降升高对装置反应部分及再生部分生产运行的影响。结合2017年对进料换热器......
Supported γ-Al2O3 membranes without defects were prepared by the sol-gel procedure. The sol-gel method involved peptiza......
设计并合成了５种不同分子结构的三嗪衍生物，将它们分别与多聚磷酸铵复配组成膨胀型阻燃剂体系。通过氧指标测定，元素分析和扫描电镜观......
