滴定分析

Methods The compound sulfur facial milk cleanser was made of sulfur, clindamycin hydrochloride, cocoanut oil diethan olamide and triethanolamine etc. Quantitative assay was conducted by titration analysis.

以硫磺、盐酸克林霉素为主药，椰子油单乙醇酰胺、三乙醇胺等药物制成复方硫磺洗面奶；采用化学滴定分析方法测定硫磺的含量。

Chemical analysis of titration analysis is an important part of the results of the accuracy of its requirements are demanding.

滴定分析是分析化学的重要部分，对于它结果的准确度要求是很严格的。

There are some shortcomings in titrimetry experiment in current analytical chemistry teaching materials.

目前的分析化学实验教材中关于滴定分析的实验指导还存在着一些不足，特别是对有些关键技术的指导存在着说的不清、说的不到位的情况，有必要对相关教材在修定时进行必要的补充与完善。

The device can be used in other locations where on-line automatic detection based on titrimetry is needed.

装置可应用于其他需要采用滴定分析法进行在线自动检测的场合。

The calculation methods in the chemical titrimetry after the promulgation of the legal unit of measurement are mainly introduced.

主要介绍法定计量单位颁布以后，化学滴定分析的计算方法，同时推荐一种更具实用意义的通用计算方法，并对其推导过程进行了详细的阐述。

In this whole, SPES and free vitriol in mixtures were simultanuously analysed by conductometric nonaqueous titration, by using the distinguishing effect of nonaqueous solvent and its predominate solubilization property for the mixtures.

为此本文提出利用非水溶剂的区分效应和对SPES的良好溶解性能，通过电导滴定分析SPES和自由硫酸的混合产物。

The method of titrimetric analysis of dissoluble carbonate in water glass has been established.

建立了水玻璃中可溶性碳酸盐的滴定分析法。

When hydrochloric acid was added into saccharin sodium solution,chemical reaction happened,whose product was glucide,which cannot be dissolved in water,however,it can be dissolved by ethyl acetate,therefore glucide can be extracted from other components,then can be determined by titration with sodium hydroxide.

利用糖精钠与盐酸反应生成不溶于水而溶于乙酸乙酯的物质，将其萃取出来，然后再利用氢氧化钠对其进行滴定分析，采用二分试差法准确测定了某镀光亮镍添加剂中糖精钠及某镀光亮镍液中糖精钠的含量，分别为88。

By use of titration analysis, the thesis investigated various factors such as isocyanate, PE molecular weight, reacting substance molecular ratio, reacting temperature and time etc. influencing upon prepolymerization step. It was found that 2, 4-tolulene diisocyanate and 4, 4'diphenylmethane diisocyanate is more rapidly reacted with PE600 than HDI. With PE molecular weight increasing, the reacting temperature or time should be raised or extended relevantly. Thus PE2000+2HDI pre-polymerization should be better carried out under some catalyst, for example, Triethylene diamine , Dibutyltin dilaurate and Tin octoate were used.

首先采用滴定分析方法对WRPU预聚反应的影响因素进行了研究：芳香族二异氰酸酯TDI、MDI比脂肪族二异氰酸酯HDI反应活性高，其中TDI在反应初始阶段的反应速率比MDI快，不过随着反应的进行，MDI比TDI反应速率加快，这主要是因为TDI分子中的两个-NCO反应活性差异大所致；二元醇分子量越大，反应速度越慢；聚醚二元醇比聚酯二元醇的反应速度快；当分子量超过2000的二元醇与HDI进行预聚反应时，需借助适当的催化剂来加快反应速度，从而使预聚反应能够顺利进行，分别选择DABCO、TOA和DBDTL三种催化剂进行催化反应，发现不同的催化剂，其催化效果相差较大。

The results are in good agreement with those obtained by titrimetric analysis.

其结果与滴定分析结果很一致。

What are your goals and strategies for growth?

你的成长目标和策略是什么？

And unto the angel of the church in Sardis write; These things saith he that hath the seven irits of God, and the seven star I know thy works, that thou hast a name that thou livest, and art dead.

3：1 你要写信给撒狄教会的使者，说，那有神的七灵和七星的，说，我知道你的行为，按名你是活的，其实是死的。