gravimetric analysis

简明释义

重量分析

英英释义

例句

1.The gravimetric analysis method is highly accurate for measuring the concentration of metals in ores.

该重力分析方法在测量矿石中金属浓度方面非常准确。

2.Using gravimetric analysis, we can calculate the purity of a compound by weighing the precipitate formed.

通过使用重力分析，我们可以通过称量形成的沉淀物来计算化合物的纯度。

3.The results from the gravimetric analysis confirmed the presence of calcium carbonate in the sample.

来自重力分析的结果确认样品中存在碳酸钙。

4.In environmental testing, gravimetric analysis can be used to quantify pollutants in soil samples.

在环境测试中，重力分析可用于量化土壤样品中的污染物。

5.In the laboratory, we performed gravimetric analysis to determine the amount of chloride in the sample.

在实验室中，我们进行了重力分析以确定样品中氯的含量。

作文

Gravimetric analysis is a fundamental technique in analytical chemistry that involves measuring the mass of an analyte or its derivatives to determine the concentration of a specific substance. This method is highly regarded for its accuracy and reliability, making it a preferred choice for many chemists when conducting quantitative analysis. The principles of gravimetric analysis (重量分析) are based on the fact that the mass of a substance can be measured with great precision, allowing for the determination of its composition in a sample. One of the key advantages of gravimetric analysis (重量分析) is its simplicity. The procedure typically involves dissolving a sample in a suitable solvent, followed by the precipitation of the analyte in a solid form. After filtration, the precipitate is dried and weighed. This process can be repeated to ensure accuracy, and the final mass can be used to calculate the concentration of the analyte in the original sample. The steps involved in gravimetric analysis (重量分析) include preparing the sample, performing the precipitation reaction, filtering the precipitate, drying it, and weighing it accurately. Each of these steps requires careful attention to detail to avoid errors that could affect the final results. For instance, if the precipitate is not completely dried, the mass measurement will be inaccurate, leading to erroneous conclusions about the sample's composition. In addition to its accuracy, gravimetric analysis (重量分析) is also beneficial because it does not require expensive or complex instrumentation. Many laboratories are equipped with basic balances and filtration apparatus, making this technique accessible to a wide range of researchers. Furthermore, the results obtained from gravimetric analysis (重量分析) can often be cross-verified using other analytical methods, enhancing the credibility of the findings. However, gravimetric analysis (重量分析) does have its limitations. It is not suitable for all types of samples, particularly those that do not easily form precipitates or those that contain volatile components. Additionally, the process can be time-consuming compared to other analytical techniques such as spectrophotometry or chromatography. Despite these drawbacks, the precision and reliability of gravimetric analysis (重量分析) make it an essential tool in many fields, including environmental science, pharmaceuticals, and materials science. In conclusion, gravimetric analysis (重量分析) is a critical technique in analytical chemistry that offers a reliable means of determining the composition of substances through precise mass measurements. Its straightforward methodology and high accuracy make it a valuable asset in various scientific disciplines. As researchers continue to seek out accurate and efficient methods for analysis, gravimetric analysis (重量分析) will undoubtedly remain a cornerstone of quantitative analysis in chemistry.

重量分析是一种基础的分析化学技术，涉及测量分析物或其衍生物的质量，以确定特定物质的浓度。这种方法因其准确性和可靠性而受到高度重视，使其成为许多化学家在进行定量分析时的首选。gravimetric analysis（重量分析）的原理基于这样一个事实：物质的质量可以以极高的精度进行测量，从而允许确定样品中的成分。gravimetric analysis（重量分析）的一个主要优势是其简单性。该过程通常涉及将样品溶解在适当的溶剂中，然后以固体形式沉淀分析物。过滤后，沉淀物被干燥并称重。这个过程可以重复进行以确保准确性，最终的质量可以用来计算原始样品中分析物的浓度。gravimetric analysis（重量分析）中涉及的步骤包括准备样品、进行沉淀反应、过滤沉淀、干燥和准确称重。每个步骤都需要仔细关注细节，以避免可能影响最终结果的错误。例如，如果沉淀物没有完全干燥，则质量测量将不准确，从而导致对样品成分的错误结论。除了其准确性外，gravimetric analysis（重量分析）还具有其他优点，因为它不需要昂贵或复杂的仪器。许多实验室配备了基本的天平和过滤设备，使这一技术对广泛的研究人员可及。此外，从gravimetric analysis（重量分析）获得的结果通常可以通过其他分析方法进行交叉验证，从而增强发现的可信度。然而，gravimetric analysis（重量分析）确实存在一些局限性。它不适用于所有类型的样品，特别是那些不容易形成沉淀或包含挥发性成分的样品。此外，与光谱法或色谱法等其他分析技术相比，这一过程可能耗时较长。尽管有这些缺点，gravimetric analysis（重量分析）的精确性和可靠性使其在环境科学、制药和材料科学等多个领域成为一种重要工具。总之，gravimetric analysis（重量分析）是分析化学中的一项关键技术，通过精确的质量测量提供了一种可靠的手段来确定物质的成分。其直接的方法和高准确性使其在各个科学学科中成为宝贵的资产。随着研究人员继续寻找准确和高效的分析方法，gravimetric analysis（重量分析）无疑将继续成为化学定量分析的基石。