滴定法

The methods determing the groups in the modified starch have been developed, that is acidimetry for the basicity of acidified starch, complexing titration for the substitution degree of carboxymethyl starch, and heat paste titration and carbonyl process respectively for the carboxyl and nitrogen of oxidized starch.

建立了以酸碱滴定测定酸化淀粉的碱量、络合滴定法测定羧甲基淀粉的取代度、热糊滴定和羟胺法测定氧化淀粉中羧基及羰基、消化定氮测定阳离子淀粉等几种变性淀粉的基团分析方法。

Chromic trioxide and chromium hemitrioxide are determined with iodometry, the coefficient of variation of chromic trioxide is 0.056%, and the recovery of marked compound is 99.82-99.83%; the coefficient of variation of chromium hemitrioxide is 1.45%,and the recovery of marked compound is 98.55-99.26%; iron is determined by complexometric titration, the coefficient of variation of iron is 1.73%, and the recovery of marked compound is 99.12-99.23%;sulfate is determined by complexometric titration, the coefficient of variation of sulphate is 0.16%, and the recovery of marked compound is

Analysis Of The Chromium Electroplating Wastewater By Oxidation-reduction And Complexometric Titration-化学工程与工艺-本文采用氧化还原滴定法与络合滴定法对镀六价铬的废水中铬酸酐，三氧化二铬，铁和硫酸根的含量进行了测定：铬酸酐和三氧化二铬用碘量法测定，铬酸酐的变异系数为0.056%，加标回收率为99.82-99.83%，三氧化二铬的变异系数为1.45%，加标回收率为98.55-99.26%；铁用络合滴定法测定，其变异系数为1.73%，加标回收率为99.12-99.23%；硫酸根用络合返滴定法测定，其变异系数为0.16%，加标回收率为

The point of zero net charge for the meadow brown soil in northeast of China with structural negative charges was measured by three methods: potentiometric titration, mass titration and inert electrolyte titration, showing that for the meadow brown soil which possesses structural negative charges, a PZNC independent of electrolyte concentration exists, and the values of pHPZNC obtained by the above three methods are 2.9, 5.0 and 3.3, respectively.

分别采用电势滴定法，质量滴定法和惰性电解质滴定法测定了荷结构负电荷的东北草甸棕壤的零净电荷点，研究表明荷结构负电荷的土壤依然存在与电解质浓度无关的零净电荷点，三种方法的实验结果分别为2.9， 5.0和3.3。

Complex formation titration, oxidimetry and precipitation titration were compared.

对配位滴定法，氧化还原滴定法和沉淀滴定法进行了比较。

The titration of the sodium hydrogen carbonate content in medicinal sodium bicarbonate tablet was compared with microburette under syringe control made on our own with conventional burette.

药用小苏打片中NaHCO3的微型滴定分析杨左海（咸宁医学院化学教研室湖北437100关键词小苏打片碳酸氢钠微型滴定法常规滴定法中图分类号O655.22小苏打片为NaHCO3加淀粉等压制而成，用于碱化尿液及酸血症，也可用于胃酸过多。

The paraffin carbon-paste electrode is applied to the oscillographic chronopotentiometric titration and the oscillographic potentiometric titration in this paper.

研究了固体石蜡碳糊电极示波计时电位滴定法和示波电位滴定法，讨论了电极的制作、各种滴定体系终点指示的灵敏度及响应机理。

The bromine value of petroleum products was determined by potential titration in mixed solvents of glacial acetic acid,trichloromethane,methanoland sulfuric acid,this method was compared with indicator titration,the experimental results show the method relative standard deviation is smaller.

以冰醋酸、三氯甲烷、甲醇和1：5的硫酸(体积比为714：134：134：18)作为滴定溶剂，采用电位滴定法测定石油产品的溴值，并与指示剂滴定法进行对比。

The method of determination of saponated value of fat or oil by electric potential titration can overcomes shortcomings that color-changing points is not clear when determining value of deep-colored fat or oil.

用电位滴定法测定油脂的皂化价，克服了反滴定法测定色泽较深油脂时，在滴定终点指示剂变色点不明显的缺点。

A method for the determination of water soluble chloride content in iron ore by potentiometric titration was studied.

以2g/L硫酸钾为溶解试剂，硝酸银为滴定剂，电位滴定法测定铁矿石中的水溶氯，通过电极电位-浓度二次微商滴定曲线，计算二次微商等于零时对应的V为滴定终点，可省去绘制E-V曲线或ΔE/ΔV-V一次微商曲线作图带来的麻烦。

The 2 g/L solution of potassium sulfate was employed for the dissolving of sample, and silver nitrate was used as titrant.

以2g/L 硫酸钾为溶解试剂，硝酸银为滴定剂，电位滴定法测定铁矿石中的水溶氯，通过电极电位-浓度二次微商滴定曲线，计算二次微商等于零时对应的V为滴定终点，可省去绘制E-V曲线或ΔE/ΔV-V一次微商曲线作图带来的麻烦。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了