chemical analysis

简明释义

化学分析;

英英释义

例句

1.A thorough chemical analysis was performed on the food samples to check for additives.

对食品样本进行了全面的化学分析以检查添加剂。

2.Pharmaceutical companies rely on chemical analysis to ensure the purity of their products.

制药公司依赖于化学分析来确保其产品的纯度。

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

实验室进行了一项化学分析以确定未知物质的成分。

4.The results of the chemical analysis revealed high levels of contaminants in the soil.

这项化学分析的结果显示土壤中污染物含量很高。

5.In environmental studies, chemical analysis is essential for assessing water quality.

在环境研究中，化学分析对评估水质至关重要。

作文

Chemical analysis is a fundamental aspect of the scientific field that allows researchers and professionals to understand the composition of substances. It involves various techniques and methods to identify and quantify the different components within a material. The importance of chemical analysis (化学分析) cannot be overstated, as it plays a crucial role in numerous industries, including pharmaceuticals, environmental science, and food safety.In the pharmaceutical industry, chemical analysis (化学分析) is essential for ensuring the quality and efficacy of drugs. Before a new medication can be approved for public use, it must undergo rigorous testing to confirm that it meets safety standards. This process often involves chemical analysis (化学分析) to determine the active ingredients and verify that no harmful contaminants are present. For instance, high-performance liquid chromatography (HPLC) is a common technique used to separate and quantify compounds in a drug formulation.Environmental scientists also rely heavily on chemical analysis (化学分析) to monitor pollution levels and assess the health of ecosystems. By analyzing soil, water, and air samples, researchers can identify the presence of toxic substances and understand their impact on the environment. Techniques such as mass spectrometry and gas chromatography are often employed in these studies to provide accurate data on the concentration of pollutants.In the food industry, chemical analysis (化学分析) is vital for ensuring food safety and quality. Food products must be tested for contaminants, additives, and nutritional content before they reach consumers. Methods like spectroscopy and titration help determine the presence of harmful chemicals or verify the nutritional claims made by manufacturers. For example, chemical analysis (化学分析) can reveal whether a product contains excessive levels of pesticides or other hazardous substances.Moreover, chemical analysis (化学分析) is not limited to industrial applications; it also plays a significant role in academic research. Scientists conduct chemical analysis (化学分析) to explore new materials, investigate chemical reactions, and develop innovative technologies. For instance, in the field of nanotechnology, researchers analyze the properties of nanoparticles to enhance their performance in various applications, from drug delivery systems to renewable energy solutions.The advancements in technology have significantly improved the efficiency and accuracy of chemical analysis (化学分析). Automated systems and sophisticated software have streamlined the process, allowing for faster results and more reliable data. Additionally, the development of portable analytical devices has made it possible to conduct chemical analysis (化学分析) in the field, providing immediate insights that can inform decision-making.In conclusion, chemical analysis (化学分析) is an indispensable tool across various sectors, contributing to our understanding of materials and ensuring safety and quality in products. As technology continues to evolve, the methods and applications of chemical analysis (化学分析) will undoubtedly expand, further enhancing its significance in science and industry.