查询词典 alkalimetric titration

In accordance with the method of silver nitrate titration of chloride in water,the sources of the uncertainty of measurement of chloride in water were analyzed and the uncertainty was evaluated.

根据硝酸银滴定法测定水中氯化物的含量，分析了该方法测量不确定度的来源，评定了水中氯化物的测量不确定度，在各不确定度中，以标准溶液配制与样品分析时滴定消耗的硝酸银体积引入的不确定度较大。

What type of electrode pairs should be used for the potentiometric titration with silver nitrate

水溶液银量法电位滴定中采用的电极系统是什么？

Construct a graph by plotting the meter readings versus the volumes of standard silver nitrate solution used in the titration.

通过仪表读数及与之读数相对应的在测式中所用销酸银溶液的量建立一个图表。

The slope of titration curve is at a minimum.

滴定曲线的斜率处于最低值。

After the solution was kept in the dark for five minutes,chloroform was added into it to adsorb selenium formed by previous reaction,then iodine separated out was determined by sodium hyposulfite titration using starch as the indicator,at last the content of selenium dioxide in the sample was foun.

在溶有二氧化硒的0.4～0.5mol/L盐酸介质中，加入过量的碘化钾，于暗处放置5min后，加入三氧甲烷吸附反应生成的硒，以淀粉为指示剂，用硫代硫酸钠标准溶液滴定析出的碘，测得二氧化硒的含量。

A basic knowledge of microbiology, will be detected with a microscope observation of micro-organisms, medium Preparation, disinfection and sterilization, separation and purification of micro-organisms, bacteria counting method A chemical analysis of the theoretical knowledge and can use chemical analysis methods and equipment of the components of material analysis Master fermentation process principles, understanding of beer, liquor, fermentation production technology Master protein related knowledge, PAGE gel electrophoresis technology, high-speed centrifugal Genetic engineering master the basic theory of knowledge, the extraction and purification of genes, PCR principle, gene recombination technology Master of the basic theoretical knowledge, the immobilized enzyme, the enzyme preparation Application Master of animal and plant tissue culture techniques of experimental steps studied experimental apparatus: Balance (scales, electronic scales, Analytical Balance), or acidity, spectrophotometer, liquid gas chromatography, acid-base titration apparatus, microscopes, centrifuges, ultrasonic cleaning, constant temperature oscillation incubator, super-clean table, steam sterilization pot, the pot constant temperature water bath, PAGE device apparatus, oven, fermenter, such as PCR instrument.

具备微生物理论基础知识，会用显微镜检测观察微生物，培养基的制备、消毒与灭菌，分离与纯化微生物，细菌的计数法具备分析化学的理论知识，能运用化学分析和仪器分析方法对物质的组分进行分析掌握发酵工艺原理，了解啤酒、白酒、发酵生产工艺掌握蛋白质相关知识，PAGE凝胶电泳技术，高速离心掌握基因工程的基本理论知识，基因的提取和纯化，PCR技术原理，基因重组技术掌握酶的基本理论知识，酶的固定化方法，酶制剂的应用掌握动植物组织培养技术的实验步骤学过的实验仪器：天平（台天平，电子天平，分析天平）、酸度计、分光光度计、液气相色谱仪，酸碱滴定仪器，显微镜，离心机，超声波清洗器、恒温振荡培养箱、超净工作台，蒸气灭菌锅、恒温水浴锅，PAGE电泳装置仪器、干燥箱、发酵罐、PCR扩增仪等。

For Instrument, select the stirrer of the Titration Manager or the stirrer of an

应用内部搅拌。 1。在仪器项，选择滴定仪的搅拌器或连接到

UV-vis titration spectra have been applied to obtain the stability constants of complexes and their stoichiometry.

紫外滴定光谱法定量计算出了半抗原GSH-S-DNP与2-diSeCD所形成复合物的结合常数远远大于其与β-CD的结合常数，且结合比都是1：1。

The diameter, density and content of stone cell are high, and the titration acid contents are high and the total soluble solid contents are low in rough pear.

粗皮果的石细胞团直径、密度和含量较高，硬度大，可滴定酸含量高，可溶性固形物低。

The content of stone cell was decreased in the treatment of ZnCl2 spraying, and it had no distinct influence on diameter and density to spray ZnCl2.The content of total soluble solid was increased, meanwhile, the titration acid contents were decreased by this way.

喷施氯化锌可以降低石细胞团含量，对直径和密度影响不大，提高了可溶性固形物，降低了核心比和可滴定酸含量。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。