滴定法

The capillary burette micro titration in counting drops is employed to determine iodine ions in the mixed halide solution.

采用毛细滴管数滴微型滴定法测定混合卤化物中的碘离子。

The drying process of chrome liquor was studied. The structure and property of chrome complex reducing by alcohol were analysed and tokened by many present well-rounded separation and analysis methods such as IR, UV-Vis Spectrum, IEC and pH potentiometry. Application tests of chrome tanning agents were conducted and tanning methods of tanning at high pH were studied. A systematic study was conducted on high alkalinity chrome tanning agents application in leather making process and possibility of clean chrome tanning was discussed.

本文系统地研究了多种小分子醇与重铬酸盐之间的氧化-还原反应，对反应过程进行了认真的剖析；对铬鞣液的干燥过程进行了研究；用红外光谱法、紫外及可见分光光度法、离子色谱法以及pH电位滴定法等多种比较成熟的现代分离分析方法相结合，对醇还原铬配合物的结构与性能进行了分析与表征；对铬鞣剂的鞣革性能进行了应用实验，研究了醇铬鞣剂在高pH值下的鞣制方法，并就高碱度铬鞣剂在制革过程中的应用进行了系统研究，探讨了用其实施清洁化铬鞣的可能性。

The drying process of chrome liquor was studied. The structure andproperty of chrome complex reducing by alcohol were analysed and tokened by manypresent well-rounded separation and analysis methods such as IR, UV-Vis Spectrum,IEC and pH potentiometry. Application tests of chrome tanning agents wereconducted and tanning methods of tanning at high pH were studied. A systematic studywas conducted on high alkalinity chrome tanning agents application in leather makingprocess and possibility of clean chrome tanning was discussed.

本文系统地研究了多种小分子醇与重铬酸盐之间的氧化-还原反应，对反应过程进行了认真的剖析；对铬鞣液的干燥过程进行了研究；用红外光谱法、紫外及可见分光光度法、离子色谱法以及pH电位滴定法等多种比较成熟的现代分离分析方法相结合，对醇还原铬配合物的结构与性能进行了分析与表征；对铬鞣剂的鞣革性能进行了应用实验，研究了醇铬鞣剂在高pH值下的鞣制方法，并就高碱度铬鞣剂在制革过程中的应用进行了系统研究，探讨了用其实施清洁化铬鞣的可能性。

This paper put forward three ways: Oxidation-reduction titration, ferruginous spectrophotometry, and direct spectrophotometry. Every way is applied in PH fit for itself. Every way should pay attention to some ways.

本论文确定高铁酸钾的三种定量分析方法：亚砷酸钠氧化还原滴定法、邻二氮杂菲分光光度法、直接分光光度法，并明确了每种方法的适用PH值范围和应遵守的相应注意事项。

The constant current coulometry as a primary method is recognized in international. Based on Faraday's law of electrolysis, it has been successfully used to determine purity of arsenic trioxide. The measuring results depend directly on the reliability of measuring physical quantities and fundamental constants expressed in SI units, and do not need a reference material for comparison.

高精密库仑滴定法是国际上公认的基准测量方法，该方法根据法拉第电解定律，通过质量、电阻、电动势、时间等基本物理量及法拉第常数来进行三氧化二砷纯度的测定，直接溯源到国际SI单位，不需要用标准物质进行比对。

There are many electrochemical methods for measuring the diffusion coefficient of lithium in carbon such as Electrochemical Impedance Spectra method、Potential Step Chronoamperometer 、Potential Intermittent Titration Technique 、Current Pulse Relaxation and Warburg impedance methods.

测试锂在碳材料中扩散系数常用的方法有电化学交流阻抗图谱法、电位阶跃时间电流法、电位间歇滴定法、电流脉冲驰豫法和Warburg阻抗法等。

Methods Ephedrine hydrochloride nasal drops was quantified by polarimetry and acid-base titrations. The data were analyzed by t-test.

分别用旋光度法与酸碱滴定法测定盐酸麻黄碱滴鼻液的含量，并将其结果进行比较。

Methods Ephedrine hydrochloride nasal drops was quantified by polarimetry and acid-base titrations.

分别用旋光度法与酸碱滴定法测定盐酸麻黄碱滴鼻液的含量，并将其结果进行比较。

Objective To determinate the content of ephedrine hydrochloride nasal drops by polarimetry instead of acid-base titrations.

；！AaY M0 目的用旋光度法替代酸碱滴定法测定盐酸麻黄碱滴鼻液的含量。

He sample is dissolved in a mixture of nitric acid and potassium chlorate.The determinations of Te,Bi,Fe and Cu are performed on a flame atomic absorption spectrophotometer.The selenium is determined photormetrically with 3,3'-diaminobenzidine,and the sulfur is determined gravimetrically as barium sulfate,precipitated frorm an EDTA-citric acid medium.

辉碲铋矿物经HNO＿3－KCIO＿3溶解，用火焰原子吸收法或乙二胺四乙酸二钠络合滴定法测定Bi，火焰原子吸收法测定Te、Fe、Cu，3，3＇二氨基联苯胺光度法测定Se，硫酸钡重量法测定S。

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