titration

简明释义

英[taɪˈtreɪʃn;tɪˈtreɪʃn]美[taɪˈtreɪʃnˌtɪˈtreɪʃn]

n. （化学）滴定，滴定法

英英释义

单词用法

同义词

反义词

例句

1.Infrared spectrum and conductance titration analysis demonstrated that hybrid components were produced in these microspheres.

红外光谱和电导率滴定分析均表明，微球中出现了新的杂化组分。

2.For those new to lamotrigine, patient titration kits will be available containing 5 weeks of treatment.

对于新用药的病人，可通过为期5周的剂量滴定来确定剂量。

3.Oscillographic titration is a new method for end point indication.

示波滴定是判断滴定终点的一种新方法。

4.A substance, such as a solution, of known concentration used in titration.

滴定剂一种用于滴定的，浓度已知的物质，如一种溶液。

5.Objective the different source of the water hardness were measured by the coordination titration.

目的用配位滴定法测定不同来源水的硬度。

6.Advantages and Prospects of photometric titration have been briefly discussed.

简评了光度滴定法的特点和发展前景。

7.In the paper the nonaqueous titration is used to determine potassium citrate content.

介绍了采用非水滴定测定柠檬酸钾含量的分析方法。

8.We used more titration points in order to raise accuracy, We may get equivalence volumes of two polyprotic acids from graph.

为提高准确度，采用多点法，从图上可得到两种酸的等当点体积。

9.Infrared spectrum and conductance titration analysis demonstrated that hybrid components were produced in these microspheres.

红外光谱和电导率滴定分析均表明，微球中出现了新的杂化组分。

10.The laboratory technician used titration 滴定 to find the exact amount of base needed to neutralize the solution.

实验室技术员使用滴定 titration 找到中和溶液所需的确切碱量。

11.We performed a titration 滴定 experiment to analyze the vitamin C content in orange juice.

我们进行了一个滴定 titration 实验，以分析橙汁中的维生素C含量。

12.The results of the titration 滴定 showed that the sample had a higher acidity than expected.

滴定 titration 的结果显示样本的酸度高于预期。

13.In chemistry class, we learned how to perform a titration 滴定 to determine the concentration of an acid.

在化学课上，我们学习了如何进行一个滴定 titration 来确定酸的浓度。

14.During the titration 滴定, the color change indicated that the endpoint had been reached.

在滴定 titration 过程中，颜色变化表明已经达到终点。

作文

In the realm of chemistry, the concept of titration plays a crucial role in quantitative analysis. Essentially, titration is a technique used to determine the concentration of a specific substance in a solution. It involves the gradual addition of a titrant—a solution of known concentration—to a sample solution until a reaction reaches its endpoint. This process is not only fundamental in laboratory settings but also has practical applications in various industries, including pharmaceuticals, environmental monitoring, and food safety.To understand titration better, we can break down the procedure into several key steps. First, a precise volume of the analyte solution, which contains the substance whose concentration we want to measure, is placed in a flask. Next, a few drops of an indicator are added to the solution. This indicator will change color when the reaction between the analyte and the titrant is complete. The titrant, typically placed in a burette, is then slowly added to the analyte while continuously stirring the solution.As the titrant is added, it reacts with the analyte in a stoichiometric manner. The point at which the reaction is complete—indicated by a color change in the solution—is known as the endpoint. At this stage, the volume of titrant used can be accurately measured. By knowing the concentration of the titrant and the volume used, one can calculate the concentration of the analyte using the formula:\[ C_1V_1 = C_2V_2 \]where \(C_1\) and \(C_2\) are the concentrations of the titrant and analyte, respectively, and \(V_1\) and \(V_2\) are their corresponding volumes.One of the most common types of titration is acid-base titration, which involves the reaction between an acid and a base. For example, if we want to determine the concentration of hydrochloric acid (HCl) in a solution, we can use sodium hydroxide (NaOH) as the titrant. As NaOH is added to the HCl solution, the pH of the solution will gradually increase until it reaches a neutral point, indicated by a color change from red to green if phenolphthalein is used as an indicator.The accuracy of titration depends on several factors, including the precision of the measurements, the purity of the reagents, and the skill of the person conducting the experiment. To improve accuracy, multiple trials are often conducted, and the average concentration is calculated. Moreover, it is essential to choose the appropriate indicator for the specific reaction, as different indicators have varying pH ranges at which they change color.Beyond the laboratory, titration serves vital functions in real-world applications. In the pharmaceutical industry, it is used to ensure that medications contain the correct dosage of active ingredients. Environmental scientists utilize titration to assess water quality by measuring the concentration of pollutants or nutrients. Furthermore, in food safety, titration helps determine levels of acidity or preservatives in products, ensuring they meet regulatory standards.In conclusion, titration is a fundamental technique in chemistry that allows for the precise determination of concentrations in various solutions. Its applications span across multiple fields, highlighting its importance in both scientific research and everyday life. Understanding the principles and procedures of titration not only enhances our knowledge of chemical interactions but also equips us with valuable skills applicable in numerous professional contexts.

在化学领域，滴定的概念在定量分析中发挥着至关重要的作用。基本上，滴定是一种用于确定溶液中特定物质浓度的技术。它涉及逐渐将已知浓度的滴定剂添加到样品溶液中，直到反应达到终点。这个过程不仅在实验室环境中是基础，而且在制药、环境监测和食品安全等多个行业也有实际应用。为了更好地理解滴定，我们可以将该过程分解为几个关键步骤。首先，将精确体积的分析物溶液放入烧瓶中，该溶液包含我们想要测量浓度的物质。接下来，向溶液中加入几滴指示剂。这个指示剂将在分析物和滴定剂之间的反应完成时改变颜色。然后，通常放置在滴定管中的滴定剂被缓慢添加到分析物中，同时不断搅拌溶液。随着滴定剂的添加，它以化学计量的方式与分析物反应。反应完成的点——通过溶液中的颜色变化来指示——被称为终点。在这一阶段，可以准确测量所用的滴定剂体积。通过知道滴定剂的浓度和使用的体积，可以使用以下公式计算分析物的浓度：\[ C_1V_1 = C_2V_2 \]其中\(C_1\)和\(C_2\)分别是滴定剂和分析物的浓度，\(V_1\)和\(V_2\)是它们对应的体积。最常见的滴定类型之一是酸碱滴定，涉及酸和碱之间的反应。例如，如果我们想要确定氯化氢（HCl）溶液的浓度，我们可以使用氢氧化钠（NaOH）作为滴定剂。当NaOH添加到HCl溶液中时，溶液的pH值会逐渐增加，直到达到中性点，如果使用酚酞作为指示剂，则颜色会从红色变为绿色。滴定的准确性取决于几个因素，包括测量的精确度、试剂的纯度以及进行实验的人的技能。为了提高准确性，通常会进行多次试验，并计算平均浓度。此外，为特定反应选择合适的指示剂也至关重要，因为不同的指示剂在改变颜色时具有不同的pH范围。在实验室之外，滴定在现实世界的应用中也发挥着重要作用。在制药行业，它用于确保药物含有正确剂量的有效成分。环境科学家利用滴定评估水质，通过测量污染物或营养物质的浓度。此外，在食品安全方面，滴定帮助确定产品中的酸度或防腐剂水平，以确保它们符合监管标准。总之，滴定是化学中的一种基本技术，可以精确确定各种溶液中的浓度。它的应用跨越多个领域，突显了它在科学研究和日常生活中的重要性。理解滴定的原理和程序不仅增强了我们对化学相互作用的知识，还使我们具备了在众多专业背景中适用的宝贵技能。