gravimetric analysis

简明释义

重量分析

英英释义

例句

1.The results from the gravimetric analysis 重量分析 were consistent with our previous findings.

来自重量分析 gravimetric analysis的结果与我们之前的发现一致。

2.Using gravimetric analysis 重量分析, we found that the sample contained 5.2 grams of chloride ions.

通过重量分析 gravimetric analysis，我们发现样品中含有5.2克氯离子。

3.The gravimetric analysis 重量分析 of the precipitate allowed us to quantify the concentration of lead in the solution.

对沉淀物的重量分析 gravimetric analysis使我们能够量化溶液中铅的浓度。

4.In the laboratory, we conducted a gravimetric analysis 重量分析 to determine the amount of sulfate in the sample.

在实验室，我们进行了重量分析 gravimetric analysis以确定样品中硫酸盐的含量。

5.To ensure accuracy, we calibrated our instruments before performing the gravimetric analysis 重量分析.

为了确保准确性，我们在进行重量分析 gravimetric analysis之前校准了仪器。

作文

Gravimetric analysis is a method of quantitative chemical analysis in which the amount of an analyte is determined by measuring its mass. This technique is widely used in various fields, including chemistry, environmental science, and materials science. The fundamental principle behind gravimetric analysis (重量分析) is that the substance being analyzed can be converted into a stable, pure compound with a known composition. By measuring the mass of this compound, chemists can accurately determine the quantity of the original analyte present in a sample.One of the most significant advantages of gravimetric analysis (重量分析) is its high accuracy and precision. Unlike other analytical methods that may rely on complex instrumentation or subjective interpretations, gravimetric analysis (重量分析) provides direct measurements based on mass. This makes it an invaluable tool for laboratories that require reliable data for quality control, research, and development.The process of gravimetric analysis (重量分析) typically involves several key steps. First, a sample containing the analyte is prepared and treated to convert it into a form that can be easily measured. This often involves precipitation, where the analyte reacts with a reagent to form a solid compound. Once the precipitate is formed, it is filtered, washed, and dried to remove any impurities and moisture.After drying, the mass of the precipitate is measured using a balance. The final step involves calculating the concentration of the original analyte based on the mass of the precipitate and its known stoichiometry. This calculation often requires knowledge of the chemical reactions involved and the molar masses of the compounds.While gravimetric analysis (重量分析) is a powerful tool, it does have some limitations. For instance, it may not be suitable for analyzing samples that contain volatile substances or those that decompose upon heating. Additionally, the process can be time-consuming, requiring careful handling and multiple steps to ensure accurate results.Despite these challenges, gravimetric analysis (重量分析) remains a cornerstone of analytical chemistry. It is particularly useful in situations where high precision is required, such as in pharmaceutical formulations, environmental monitoring, and food safety testing. The simplicity and reliability of the method make it a preferred choice for many chemists.In conclusion, gravimetric analysis (重量分析) is an essential analytical technique that allows for the accurate determination of the mass of an analyte within a sample. Its straightforward approach and high level of precision make it a valuable method in various scientific disciplines. As technology advances, the principles of gravimetric analysis (重量分析) will continue to play a crucial role in enhancing our understanding of chemical substances and their properties.

重量分析是一种定量化学分析方法，通过测量分析物的质量来确定其数量。这种技术广泛应用于化学、环境科学和材料科学等各个领域。gravimetric analysis（重量分析）的基本原理是被分析的物质可以转化为一种稳定的、纯净的化合物，其成分已知。通过测量该化合物的质量，化学家可以准确地确定样品中原始分析物的数量。gravimetric analysis（重量分析）最显著的优点之一是其高精度和准确性。与其他可能依赖复杂仪器或主观解释的分析方法不同，gravimetric analysis（重量分析）提供基于质量的直接测量。这使得它成为实验室在质量控制、研究和开发中需要可靠数据的重要工具。gravimetric analysis（重量分析）的过程通常涉及几个关键步骤。首先，准备含有分析物的样品，并进行处理，以将其转化为可以轻易测量的形式。这通常涉及沉淀反应，其中分析物与试剂反应形成固体化合物。一旦沉淀形成，就会过滤、洗涤并干燥，以去除任何杂质和水分。干燥后，使用天平测量沉淀的质量。最后一步涉及根据沉淀的质量及其已知的化学计量比计算原始分析物的浓度。这一计算通常需要了解涉及的化学反应及化合物的摩尔质量。虽然gravimetric analysis（重量分析）是一种强大的工具，但也存在一些局限性。例如，它可能不适用于分析含有挥发性物质或在加热时分解的样品。此外，这一过程可能耗时较长，需要仔细处理和多个步骤以确保结果的准确性。尽管面临这些挑战，gravimetric analysis（重量分析）仍然是分析化学的基石。在需要高精度的情况下，特别是在制药配方、环境监测和食品安全测试中，它尤为有用。这种方法的简单性和可靠性使其成为许多化学家的首选。总之，gravimetric analysis（重量分析）是一种基本的分析技术，可以准确确定样品中分析物的质量。其直接的方法和高水平的精确性使其在各种科学学科中成为一种宝贵的方法。随着技术的进步，gravimetric analysis（重量分析）的原理将继续在增强我们对化学物质及其性质的理解中发挥关键作用。