complexometric titration

简明释义

络合滴定法

英英释义

例句

1.The complexometric titration 络合滴定 technique is essential for determining the hardness of water.

该络合滴定 complexometric titration技术对于确定水的硬度至关重要。

2.In the laboratory, we performed a complexometric titration 络合滴定 to determine the concentration of calcium ions in the water sample.

在实验室中，我们进行了一个络合滴定 complexometric titration，以确定水样中钙离子的浓度。

3.We calibrated our instruments before conducting the complexometric titration 络合滴定 to ensure accurate results.

在进行络合滴定 complexometric titration之前，我们对仪器进行了校准，以确保结果准确。

4.To analyze the metal content in soil, we utilized complexometric titration 络合滴定 as a reliable method.

为了分析土壤中的金属含量，我们采用了络合滴定 complexometric titration作为一种可靠的方法。

5.The results of the complexometric titration 络合滴定 showed a significant presence of magnesium in the mineral supplement.

该络合滴定 complexometric titration的结果显示矿物补充剂中镁的含量显著。

作文

Complexometric titration is a powerful analytical technique used to determine the concentration of metal ions in a solution. This method relies on the formation of stable complexes between metal ions and chelating agents, which are molecules that can bind to metal ions through multiple coordination sites. One of the most commonly used chelating agents in complexometric titration (络合滴定) is ethylenediaminetetraacetic acid (EDTA). EDTA has the ability to form highly stable complexes with a wide range of metal ions, making it an ideal choice for this type of analysis.The process of complexometric titration (络合滴定) begins with the preparation of the sample solution containing the metal ions of interest. The solution is then treated with a known concentration of EDTA. As the titration proceeds, the EDTA binds to the metal ions, forming a complex. The endpoint of the titration is reached when all the metal ions have reacted with the EDTA, and no free metal ions remain in the solution.To detect the endpoint, an indicator is often used. Indicators such as Eriochrome Black T are commonly employed in complexometric titration (络合滴定). These indicators change color when they bind to metal ions, providing a visual cue that signifies the completion of the reaction. As the titration approaches its endpoint, the color of the solution will change, indicating that the metal ions have been completely complexed by the EDTA.One of the main advantages of complexometric titration (络合滴定) is its high sensitivity and accuracy. It allows for the determination of metal ion concentrations at very low levels, which is particularly useful in various fields such as environmental monitoring, food safety, and pharmaceuticals. For instance, the analysis of heavy metals in drinking water is crucial for public health, and complexometric titration (络合滴定) provides a reliable method for ensuring water quality.Furthermore, complexometric titration (络合滴定) is not limited to just one type of metal ion. It can be adapted to analyze multiple metal ions simultaneously by using specific indicators or modifying the conditions of the titration. This versatility makes it a valuable tool in both research and industrial applications.In conclusion, complexometric titration (络合滴定) is an essential technique in analytical chemistry that enables the precise determination of metal ions in various solutions. Its reliance on the formation of stable complexes and the use of colorimetric indicators make it an accessible and effective method for many applications. As technology advances, the methods and applications of complexometric titration (络合滴定) will continue to evolve, further enhancing its significance in analytical laboratories around the world.

络合滴定是一种强大的分析技术，用于确定溶液中金属离子的浓度。该方法依赖于金属离子与螯合剂之间形成稳定的络合物，螯合剂是能够通过多个配位位点与金属离子结合的分子。在络合滴定中，最常用的螯合剂之一是乙二胺四乙酸（EDTA）。EDTA能够与多种金属离子形成高度稳定的络合物，使其成为此类分析的理想选择。络合滴定的过程始于准备含有目标金属离子的样品溶液。然后，溶液与已知浓度的EDTA处理。随着滴定的进行，EDTA与金属离子结合，形成络合物。当所有金属离子都与EDTA反应后，且溶液中不再存在游离金属离子时，即达到滴定的终点。为了检测终点，通常使用指示剂。诸如黑色酞菁T等指示剂在络合滴定中被广泛使用。这些指示剂在与金属离子结合时会改变颜色，提供一个视觉线索，表明反应已完成。随着滴定接近终点，溶液的颜色将发生变化，表明金属离子已完全被EDTA络合。络合滴定的主要优点之一是其高灵敏度和准确性。它允许在非常低的水平上确定金属离子的浓度，这在环境监测、食品安全和制药等各个领域特别有用。例如，饮用水中重金属的分析对公共健康至关重要，而络合滴定提供了一种可靠的方法以确保水质。此外，络合滴定不仅限于一种金属离子。通过使用特定的指示剂或修改滴定条件，它可以适应同时分析多种金属离子。这种多功能性使其在研究和工业应用中成为一种有价值的工具。总之，络合滴定是分析化学中的一项基本技术，使各种溶液中金属离子的精确测定成为可能。它依赖于稳定络合物的形成和比色指示剂的使用，使其成为许多应用中可行且有效的方法。随着技术的进步，络合滴定的方法和应用将继续发展，进一步增强其在全球分析实验室中的重要性。