analytical reagent

简明释义

1. 分析纯试剂; 2. 分析试剂; 3. 分析纯; 4. 分析药剂;

英英释义

例句

1.Before starting the experiment, make sure to check the expiration date of the analytical reagent 分析试剂.

在开始实验之前，请确保检查分析试剂的有效期。

2.The quality of the analytical reagent 分析试剂 is crucial for accurate test results.

分析试剂的质量对准确的测试结果至关重要。

3.We need to purchase more analytical reagent 分析试剂 for our upcoming research project.

我们需要购买更多的分析试剂用于即将到来的研究项目。

4.In the chemistry lab, we use analytical reagent 分析试剂 to determine the concentration of substances.

在化学实验室，我们使用分析试剂来确定物质的浓度。

5.Always handle analytical reagent 分析试剂 with care, as some can be hazardous.

始终小心处理分析试剂，因为有些可能是危险的。

作文

In the field of chemistry, precision and accuracy are paramount. To achieve reliable results in various experiments, scientists often rely on high-quality substances known as analytical reagents. These are chemicals that are specifically designed for use in analytical procedures, such as quantitative and qualitative analysis. The importance of analytical reagents cannot be overstated, as they play a crucial role in determining the composition of a sample, detecting impurities, and ensuring that experimental results are valid and reproducible.The term analytical reagent refers to chemicals that meet certain purity standards and are suitable for laboratory use. They must be free from contaminants that could interfere with analytical measurements. For instance, when conducting titrations or chromatography, the presence of impurities can lead to erroneous conclusions. Therefore, researchers must select analytical reagents that have been thoroughly tested and certified for their intended use.One of the key characteristics of analytical reagents is their high level of purity. This is typically denoted by specific grades such as AR (Analytical Reagent), which indicates that the chemical meets strict purity criteria. These reagents are often used in laboratories for tasks such as preparing standard solutions, calibrating instruments, and performing complex analyses. The reliability of any scientific investigation hinges on the quality of the analytical reagents used, making their selection a critical step in the research process.Furthermore, the application of analytical reagents extends beyond simple laboratory experiments. In industries such as pharmaceuticals, environmental monitoring, and food safety, these reagents are essential for quality control and regulatory compliance. For example, in drug formulation, the purity of raw materials is vital to ensure the safety and efficacy of the final product. By utilizing analytical reagents, manufacturers can verify that their products meet the required specifications and standards set by health authorities.To illustrate the significance of analytical reagents, consider a scenario where a chemist is tasked with analyzing the concentration of a particular metal ion in a water sample. The chemist would first select an appropriate analytical reagent that reacts specifically with the target metal ion. By measuring the intensity of the color change or the amount of precipitate formed, the chemist can determine the concentration of the metal ion with a high degree of accuracy. Without the use of high-quality analytical reagents, the results of such an analysis could be misleading and potentially harmful if used in decision-making processes.In conclusion, analytical reagents are indispensable tools in the realm of scientific research and industry. Their role in ensuring the accuracy and reliability of analytical methods cannot be ignored. As science continues to advance, the demand for high-quality analytical reagents will only increase, underscoring the need for ongoing development and improvement in the production and certification of these essential chemicals. Ultimately, the integrity of scientific inquiry and its applications in real-world scenarios depend significantly on the judicious use of analytical reagents.

在化学领域，精确和准确是至关重要的。为了在各种实验中获得可靠的结果，科学家们常常依赖于高质量的物质，这些物质被称为分析试剂。这些是专门为定量和定性分析等分析程序设计的化学品。分析试剂的重要性不容小觑，因为它们在确定样本的成分、检测杂质以及确保实验结果的有效性和可重复性方面发挥着至关重要的作用。术语分析试剂指的是符合特定纯度标准并适合实验室使用的化学品。它们必须不含可能干扰分析测量的污染物。例如，在进行滴定或色谱分析时，杂质的存在可能导致错误的结论。因此，研究人员必须选择经过彻底测试并认证用于其预期用途的分析试剂。分析试剂的一个关键特征是其高纯度水平。这通常用特定等级表示，例如AR（分析试剂），这表明该化学品符合严格的纯度标准。这些试剂通常在实验室中用于准备标准溶液、校准仪器和执行复杂的分析。任何科学研究的可靠性都取决于所使用的分析试剂的质量，使其选择成为研究过程中的关键步骤。此外，分析试剂的应用不仅限于简单的实验室实验。在制药、环境监测和食品安全等行业，这些试剂对于质量控制和法规合规至关重要。例如，在药物配方中，原材料的纯度对确保最终产品的安全性和有效性至关重要。通过利用分析试剂，制造商可以验证其产品是否符合健康当局设定的要求和标准。为了说明分析试剂的重要性，考虑一个场景，其中一位化学家负责分析水样中某种金属离子的浓度。化学家首先会选择一种适当的分析试剂，该试剂与目标金属离子特异性反应。通过测量颜色变化的强度或形成的沉淀量，化学家可以以高精度确定金属离子的浓度。如果没有高质量的分析试剂，这种分析的结果可能会误导，并在决策过程中产生潜在危害。总之，分析试剂是科学研究和工业领域不可或缺的工具。它们在确保分析方法的准确性和可靠性方面的作用不容忽视。随着科学的不断进步，对高质量分析试剂的需求只会增加，这突显了在这些基本化学品的生产和认证中持续发展和改进的必要性。最终，科学探究的完整性及其在现实世界场景中的应用在很大程度上依赖于对分析试剂的明智使用。