滴定法

The result shows that the structure and property of alkali cellulose and PAC is hardly dependent on the organic solvent in the manufacturing process.

同时借助1H-NMR、化学滴定法表征了不同介质中纤维素羧甲基化产物大分子的一级结构。

And the result is AgNO3 measuring NaIO4 titration. Amino nitrogen content in DAC derivatives was measured by element analysis technique.

通过四种醛基检测方法的比较，AgNO3滴定法是测定醛基含量最适宜的，从分析手段来讲，也是简便易行成本较低的。

DETERMINATION OF CHROMIUM OXIDE.

氧化铬的滴定法测定？

PAN-ACF was modified by different methods, such as heat oxidation, nitric acid dipping and hydrogen peroxide dipping, the characteristics changes of the PAN-ACF before and after modification such as kinds of surface functional groups, amounts of oxygen function groups, surface microstructure and specific surface were analyzed by FT-IR, Boehm.

采用热氧化、硝酸浸渍、过氧化氢浸渍等方法对聚丙烯腈基活性炭纤维进行改性处理，使用FT-IR、Boehm滴定法、SEM、BET等分析技术表征了改性前后PAN-ACF表面官能团种类、含氧基团数量、表面微观结构及比表面积等表面特性。

Determination ; sulphur content ; dye bath ; sulfide ion ; electrode ; sulfion-selective electrode ; sulfide-antioxidation-buffer ; potentiometric titration

测定；硫分；染浴；硫离子；电极；硫离子选择电极；硫化物抗氧缓冲剂；电位滴定法

The potassium polyvinylsulfate was synthesized by using different types of polyvinylalcohol, the ester value of the PVSK was determined by the method of BaCl2 titration.

摘 要：用不同牌号的聚乙烯醇制备聚乙烯醇硫酸钾，用BaCl2滴定法测定了它们的酯化度。

This paper has carried out careful thorough research according to the EDTA basic principle of the content of zinc in titration mensuration lead zinc mine, for its mensuration condition , has given steady, reliable analysis method and operating step , can offer guidance and basis for the inspection of lead mine in mining, metallurgical profession laboratory.

本论文根据EDTA滴定法测定铅锌矿中锌的含量的基本原理，对其测定条件进行了细致深入的研究，给出了稳定、可靠的分析方法和操作步骤，可为矿山、冶金行业化验室中铅锌矿的检验提供指导和依据。

One has the ability of photo-cleavage of DNA and another one as potential anti-cancer drug has the ability of oxidative cleavage of DNA. 1. As for the first system, a new ligand----Tpphz is used as the intercalator of the targeted compound. The 〓 is synthesized and characterized by elemental analysis,〓H NMR, molar conductivity, AgNO〓 titration, UV and fluorescence spectra.

核酸的光切割方面，我们选择了近年来新发现的一个配体Tpphz作为目标化合物的插入配体，合成了新颖的〓单核配合物，并通过元素分析、〓H NMR、摩尔电导测定、中心离子滴定法、紫外光谱和荧光光谱对此化合物进行了详细的表征。

The structure and graft rate of the graft polymer were determined by means of IR spectra and acid-base titrations, the effect of content of POE, MAH, DCP and reaction temperature on graft rate were studied in detail.

通过红外光谱确定了接枝物的结构，采用酸碱滴定法测定了产物的接枝率，详细研究了POE、MAH、DCP用量及反应温度等对接枝率的影响规律。

The morphological analysis and chemical characterization of the worn surfaces via scanning electron microscopy, laser scanning microscope, and X-ray photoelectron spectroscopy reveal that under titrimetric water lubrication, the hBN in Si3N4-hBN spalled off during the wearing tests and the spalled pits formed on the wearing surface of Si3N4-hBN, and then the debris dropped into the pits to react with water, thus a tribochemical film formed on the wearing surface. The formation of the tribochemical film facilitated smoothing the surfaces of Si3N4-hBN and Si3N4 to create a fine lubrication environment.

在滴定法水润滑条件下，磨屑不易被水带走，当Si3N4-hBN与Si3N4配副摩擦时，由于Si3N4-hBN摩擦面上hBN偏聚区域发生脆性断裂和剥落而形成剥落坑，磨屑在剥落坑中堆积并氧化、水解，反应产物富集于剥落坑中，进而在摩擦表面形成含B2O3和SiO2的摩擦化学反应膜，从而保护了Si3N4-hBN和Si3N4摩擦面，使其变得光滑，为发生流体润滑提供了条件。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。