滴定分析法

Introduce the composition of naphthenic acid and two methods about the determination of acid number .

介绍了石油酸的组成及国内测定原油酸值的两种方法，对采用不同方法测定原油酸值产生的差异进行分析，建议采用电位滴定法测定原油的酸值。

In this experiment, we utilized organic solvent ethanol, acetone sedimentation separation method to separate and purify metal chelates. In the mean time, the chelation ratio of L-aspartic acid/aspartame zinc、autunite、coppe、ferrous complex was determined by EDTA complexometric titration and the products\' structure were analyzed and confirmed by IR spectrometry.

本试验采用有机溶剂乙醇、丙酮沉淀分离法来分离提纯金属螯合物，借助EDTA络合滴定法测定了L-天门冬氨基酸、阿斯巴甜与金属元素钙、铁、铜、锌的螯合率，利用红外光谱对产品结构进行了分析确认。

Use AgNO3 titration testing,acid and alkali titration, automatic electrical potential titration respectively to detect the dialdehyde content.

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。

In this paper,by the University has been the chemical knowledge of the potassium dichromate has no mercury titration experiment, given the conditions and the determination of reliable analytical methods.

本文应用大学已获得的化学知识，对已有的重铬酸钾无汞滴定法进行实验研究，给出了测定条件和可靠的分析方法。

According to the papers EDTA Titration of lead in lead-zinc content of the basic principles Determination of its conditions for the in-depth and meticulous research, is a stable and reliable analytical methods and operating procedures, that will be for the mine, China Metallurgical Industry Galena laboratory testing to provide guidance and basis.

本论文根据EDTA滴定法测定铅锌矿中铅的含量的基本原理，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矿的检验提供指导和依据。

Titrimetry and gravimetry are widely used in standardization processes due to the extremely accurate, although instrumental techniques have superseded them in most routine and general analytical investigations.

由于滴定法和重量法具有很高的准确度，广泛应用于标准化过程，虽然在大多数常规的和综合的分析研究中已被仪器技术所替代。

This experiment will introduce you to quantitative volumetric analysis and potentiometric titrations.

这个实验将会向你介绍定量容量分析法和电位滴定法

The accuracy and consistency of the new Nessler tube method were systematically studied versus the traditional acid-base titration and average chainlength methods through concentration measurements on polyphosphoric acid with concentrations ranging from 110% to 119%.

通过精确测定浓度范围在110%-119%的多聚磷酸的浓度，配之以理论分析，系统地比较研究了新型Nessler管粘度法和传统的酸碱滴定法、平均链长法的测试精度及稳定性。

In comparison with the volumetric Karl Fischer titration, coulometry is a micro-method.

与卡尔费休容量滴定法比较，库仑分析法是微量法。

To determine the content of ascorbic acid in vegetables with the constant current coulometry method, dead-stop method was used for the detection of end point of the coulometric titration.

以恒电流库仑分析法测定了蔬菜中抗坏血酸的含量，以死停终点法指示库仑滴定终点，测定结果与国标规定方法相吻合。

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