dry assay

简明释义

干法试金

英英释义

例句

1.The laboratory performed a dry assay to determine the concentration of the active ingredient in the sample.

实验室进行了一个干法测定以确定样品中活性成分的浓度。

2.The results from the dry assay were consistent with previous wet chemistry tests.

来自干法测定的结果与之前的湿化学测试一致。

3.The technician explained how to perform a dry assay safely in the lab.

技术员解释了如何在实验室安全地进行干法测定。

4.Using a dry assay method can reduce the need for solvents in chemical analysis.

使用干法测定方法可以减少化学分析中对溶剂的需求。

5.In pharmaceutical development, a dry assay is often used to analyze drug formulations.

在药物开发中，通常使用干法测定来分析药物配方。

作文

In the field of analytical chemistry, various methods are employed to determine the composition of substances. One such method is the dry assay, which refers to a technique that involves the analysis of a sample without the use of solvents or liquid reagents. This method is particularly useful in situations where the presence of moisture could alter the results or when the sample is in a solid state. The dry assay is commonly utilized in the pharmaceutical industry, mining, and materials science, where precise measurements are crucial for quality control and product development.The principle behind a dry assay is relatively straightforward. The sample is first prepared by grinding it into a fine powder if necessary. This increases the surface area, allowing for more accurate measurements. The powdered sample is then subjected to various analytical techniques such as X-ray fluorescence (XRF) or infrared spectroscopy. These techniques can provide valuable information about the elemental composition and chemical properties of the sample without the need for liquid reagents.One of the main advantages of using a dry assay is the reduction of hazardous waste. Traditional wet assays often involve the use of toxic solvents that require careful disposal. By eliminating these solvents, laboratories can minimize their environmental impact and adhere to stricter regulations regarding hazardous materials. Additionally, the dry assay process can be quicker than wet methods, as it eliminates the time needed for sample preparation and drying.However, there are also challenges associated with dry assays. One significant limitation is that not all substances can be effectively analyzed using this method. Some materials may require the dissolution in a solvent to accurately assess their properties. Furthermore, the precision of a dry assay can be influenced by factors such as particle size and homogeneity of the sample. Therefore, it is crucial for analysts to carefully consider the nature of the sample before selecting this method.In conclusion, the dry assay is a valuable analytical technique that offers numerous benefits, including reduced environmental impact and faster results. Its application across various industries highlights its importance in modern analytical chemistry. As technology continues to advance, we can expect to see improvements in the accuracy and efficiency of dry assays, making them an even more integral part of material analysis and quality control. Understanding the principles and limitations of this method is essential for chemists and researchers who aim to utilize it effectively in their work.

在分析化学领域，采用多种方法来确定物质的成分。其中一种方法是干法测定，它指的是一种分析样品的技术，该技术不使用溶剂或液体试剂。这种方法在潮湿可能改变结果的情况下或样品处于固态时特别有用。干法测定通常用于制药行业、采矿和材料科学，在这些领域，精确的测量对于质量控制和产品开发至关重要。干法测定的原理相对简单。样品首先通过必要时将其研磨成细粉末来进行准备。这增加了表面积，从而允许更准确的测量。然后，粉末样品会受到各种分析技术的影响，例如X射线荧光（XRF）或红外光谱。这些技术可以提供有关样品元素组成和化学性质的宝贵信息，而无需液体试剂。使用干法测定的主要优点之一是减少危险废物的产生。传统的湿法测定通常涉及使用需要小心处理的有毒溶剂。通过消除这些溶剂，实验室可以最小化其对环境的影响，并遵守有关危险材料的更严格法规。此外，干法测定过程可能比湿法更快，因为它消除了样品准备和干燥所需的时间。然而，干法测定也面临一些挑战。一个显著的限制是并非所有物质都可以有效地使用这种方法进行分析。一些材料可能需要溶解在溶剂中才能准确评估其性质。此外，干法测定的精度可能受到粒子大小和样品均匀性等因素的影响。因此，分析师在选择该方法之前必须仔细考虑样品的性质。总之，干法测定是一种有价值的分析技术，提供了许多好处，包括减少环境影响和更快的结果。它在各个行业中的应用突显了其在现代分析化学中的重要性。随着技术的不断进步，我们可以期待看到干法测定的准确性和效率的提高，使其在材料分析和质量控制中变得更加不可或缺。理解这种方法的原理和局限性对于化学家和研究人员有效利用它至关重要。