chemical analysis

简明释义

化学分析化学检验

英英释义

例句

1.The results of the chemical analysis were crucial for the environmental impact assessment.

这次化学分析的结果对环境影响评估至关重要。

2.The laboratory conducted a chemical analysis to determine the composition of the unknown substance.

实验室进行了化学分析以确定未知物质的成分。

3.A detailed chemical analysis revealed the presence of several harmful chemicals in the product.

详细的化学分析揭示了产品中存在几种有害化学物质。

4.Through chemical analysis, we found that the water was contaminated with heavy metals.

通过化学分析，我们发现水中含有重金属污染。

5.Before releasing the new drug, the company performed a chemical analysis to ensure its safety.

在发布新药之前，公司进行了化学分析以确保其安全性。

作文

Chemical analysis is a fundamental technique used in various scientific fields to determine the composition and structure of substances. It plays a crucial role in chemistry, biology, environmental science, and many other disciplines. By employing different methods of chemical analysis (化学分析), scientists can identify the materials present in a sample, understand their properties, and assess their potential interactions with other substances.One of the most common methods of chemical analysis (化学分析) is qualitative analysis, which focuses on identifying the components of a mixture. For instance, in a laboratory setting, chemists may use techniques such as chromatography or mass spectrometry to separate and identify individual compounds within a complex sample. This process is essential in drug development, where understanding the precise composition of a new pharmaceutical product is vital for ensuring its safety and efficacy.Quantitative analysis, another important aspect of chemical analysis (化学分析), involves measuring the concentrations of specific substances within a sample. Techniques such as titration, spectrophotometry, and atomic absorption spectroscopy are commonly employed to obtain accurate measurements. For example, environmental scientists often perform quantitative chemical analysis (化学分析) of water samples to detect pollutants and assess the quality of drinking water. These analyses are critical for public health and environmental protection, as they provide the data necessary to make informed decisions regarding pollution control and resource management.In addition to traditional laboratory techniques, advancements in technology have led to the development of new tools for chemical analysis (化学分析). For instance, portable spectrometers and field analyzers allow scientists to conduct on-site analyses, making it easier to monitor environmental conditions in real-time. This capability is particularly useful in emergency response situations, such as chemical spills or natural disasters, where rapid assessment of hazardous materials is essential for ensuring public safety.The importance of chemical analysis (化学分析) extends beyond scientific research; it also has significant implications in industry and manufacturing. Quality control processes often rely on chemical analysis (化学分析) to ensure that products meet specific standards and regulations. For example, food and beverage companies routinely conduct chemical analysis (化学分析) to test for contaminants and verify the authenticity of ingredients. Similarly, the pharmaceutical industry must adhere to strict guidelines regarding the composition of drugs, necessitating thorough chemical analysis (化学分析) throughout the production process.Moreover, chemical analysis (化学分析) is crucial in forensic science, where it is used to analyze evidence from crime scenes. Techniques such as gas chromatography-mass spectrometry (GC-MS) can detect trace amounts of substances, helping investigators identify illegal drugs, toxins, or other relevant materials. The ability to accurately analyze samples can significantly impact the outcome of criminal investigations and legal proceedings.In conclusion, chemical analysis (化学分析) is an indispensable tool in modern science and industry. Its applications range from environmental monitoring and public health to quality control in manufacturing and forensic investigations. As technology continues to advance, the methods and capabilities of chemical analysis (化学分析) will likely evolve, further enhancing our understanding of the world around us and improving our ability to address complex challenges. The significance of chemical analysis (化学分析) cannot be overstated, as it underpins much of the progress we make in science and technology today.

化学分析是一种基础技术，广泛应用于各个科学领域，以确定物质的组成和结构。它在化学、生物学、环境科学以及许多其他学科中发挥着至关重要的作用。通过采用不同的化学分析方法，科学家可以识别样品中存在的材料，理解它们的性质，并评估它们与其他物质的潜在相互作用。化学分析的最常见方法之一是定性分析，重点在于识别混合物的成分。例如，在实验室环境中，化学家可能会使用色谱法或质谱法等技术来分离和识别复杂样品中的单个化合物。这个过程在药物开发中至关重要，因为了解新药产品的精确组成对确保其安全性和有效性至关重要。定量分析是化学分析的另一个重要方面，涉及测量样品中特定物质的浓度。滴定、分光光度法和原子吸收光谱法等技术通常用于获得准确的测量结果。例如，环境科学家经常对水样进行定量化学分析，以检测污染物并评估饮用水的质量。这些分析对于公共健康和环境保护至关重要，因为它们提供了做出关于污染控制和资源管理的明智决策所需的数据。除了传统的实验室技术，科技的进步还导致了新的化学分析工具的发展。例如，便携式光谱仪和现场分析仪使科学家能够进行现场分析，从而更容易实时监测环境条件。这种能力在应急响应情况下尤为有用，例如化学泄漏或自然灾害，在这些情况下，迅速评估危险材料对于确保公众安全至关重要。化学分析的重要性不仅体现在科学研究中，它在工业和制造业中也具有重要意义。质量控制过程通常依赖于化学分析以确保产品符合特定标准和法规。例如，食品和饮料公司定期进行化学分析以测试污染物并验证成分的真实性。同样，制药行业必须遵循有关药物组成的严格指南，因此在生产过程中需要进行彻底的化学分析。此外，化学分析在法医科学中至关重要，用于分析犯罪现场的证据。气相色谱-质谱联用（GC-MS）等技术可以检测微量物质，帮助调查人员识别非法药物、毒素或其他相关材料。准确分析样品的能力可以显著影响刑事调查和法律程序的结果。总之，化学分析是现代科学和工业中不可或缺的工具。它的应用范围从环境监测和公共健康到制造业的质量控制和法医调查。随着科技的不断进步，化学分析的方法和能力可能会不断演变，进一步增强我们对周围世界的理解，提高我们解决复杂挑战的能力。化学分析的重要性不容低估，因为它支撑着我们在科学和技术进步中的许多成就。