By giving examples, including the determination of acetic acid content in aqua ammonia, the use is described of the cation exchange resin in analysis in nitrogenous fertilizer plants. 通过氨水中乙酸含量的测定等实例,介绍了阳离子交换树脂在氮肥厂分析中的应用。
Looking at the Long-distance Teaching Process from the Perspective of Communi-cation-An Analysis of the Communicative Models of the Long-distance and Open Edu-cation 从传播学视角看远程教学过程&简析远程开放教育传播模式
Singular quadratic boundary elements and its appli& cation to fracture analysis around the heel of gravity dams 二次奇性边界元及其在重力坝坝踵断裂分析中的应用
A mathematical model of the relationship between water volume absorbed by mud stone and shale and cation exchange capacity is set up by using regression analysis method to find the estimative water volume absorbed by mud stone and shale. 并用回归分析法建立泥页岩吸水量与其阳离子交换容量间的数学模型,求出泥页岩吸水量的估计值。
The analytical data of soil, such as pH, organism, cation exchange capacity, interchangeable Mn, reducible Mn etc were treated, and it showed that the precision of analysis was high enough, but that of sam-pling was not so. 本文处理了pH、有机质、阳离子交换量、交换性Mn、易还原态Mn等土壤分析数据,结果显示分析精度足够高而取样精度不够。
A supramolecular complex [ K ( DN18-C-6)( EtOEt)] [ ( BPh4)] containing cation-π and π-π interactions was reported in this paper, it was characterized by elemental analysis, IR and single crystal X-ray diffraction. 本文报道了一个包含阳离子-π和π-π作用的超分子配合物:[K(DN18-C-6)(EtOEt)][(BPh4)],对其进行了元素分析、红外光谱、X射线单晶衍射等表征。
Cation diffusion facilitator ( CDF) proteins play an essential role in metal homeostasis and tolerance. Analysis of the Arabidopsis genome identified no less than 12 genes that encode proteins belonging to the CDF family. CDF家族蛋白在金属离子的动态平衡和耐受过程中起重要作用,拟南芥基因组序列分析表明,拟南芥中CDF家族至少由12个成员构成。
It was found that the sodium cation interacts on oxygen atom of CO group in DMF molecules. The solvation number of Na+, four, was obtained according to the change analysis of CH 3 rocking band. DMF分子的谱带变化表明,Na+与DMF分子的相互作用是通过DMF分子羰基上的氧原子进行的。
Aiming at some existent problems in the separation and identification of the second group cation about the part of the qualitative analysis at the analytical experiment book that students use currently at present. This article improved the analytical method about the mixture of copper group and tin group. 针对目前学生使用的分析实验书中定性分析部分第二级阳离子的分离和鉴定存在的问题,本人就铜锡组混合物分析法进行了改进。
The effect on difference valence sulfate cation on the hydration and induration process of a-hemihydrates gypsum was studied by means of analysis of the curve of heat evolution rate, liquid phase composition and ζ potential. 通过水化升温曲线、ζ电位、液相组成等的测定,研究了不同电价阳离子对α半水石膏水化硬化过程的影响。