analytically pure

简明释义

分析纯

英英释义

例句

1.Only analytically pure substances can be used in this high-precision analysis.

在这种高精度分析中只能使用分析纯的物质。

2.The chemical compound was labeled as analytically pure, meaning it was free from impurities for accurate testing.

该化合物被标记为分析纯，意味着它不含杂质，适合进行准确测试。

3.The laboratory confirmed that the solvent used was analytically pure to avoid any contamination.

实验室确认所用溶剂为分析纯，以避免任何污染。

4.For the experiment, we need analytically pure reagents to ensure reliable results.

为了实验，我们需要分析纯的试剂以确保结果可靠。

5.The synthesis of the compound requires analytically pure starting materials.

该化合物的合成需要分析纯的原料。

作文

In the field of chemistry, the term analytically pure refers to a substance that has a very high level of purity, typically exceeding 99%. This level of purity is essential for conducting precise and accurate experiments. When a chemist refers to a compound as analytically pure, they indicate that it is suitable for analytical methods, meaning that any impurities present would not significantly affect the results of an analysis. The importance of using analytically pure substances cannot be overstated, especially in research and development settings where the integrity of the data is paramount.For instance, in pharmaceutical research, the efficacy and safety of new drugs must be evaluated with utmost precision. If a researcher uses a compound that is not analytically pure, the results could lead to false conclusions about the drug's effectiveness or toxicity. This could have serious implications for patient safety and regulatory approval processes. Therefore, ensuring that reagents and compounds are analytically pure is a critical step in the workflow of any laboratory.Moreover, the process of obtaining analytically pure substances often involves several purification steps, such as recrystallization, distillation, or chromatography. Each of these methods aims to eliminate impurities that may interfere with analytical techniques like mass spectrometry or nuclear magnetic resonance (NMR) spectroscopy. For example, during recrystallization, a compound is dissolved in a solvent at high temperatures and then allowed to cool, promoting the formation of pure crystals while leaving impurities in the solution. This careful attention to detail ensures that the final product meets the stringent criteria of being analytically pure.Furthermore, the significance of analytically pure substances extends beyond the laboratory. In environmental science, for example, the detection of pollutants in water samples requires the use of standards that are analytically pure. If the standards used for calibration are contaminated, it can lead to inaccurate measurements, potentially underestimating the levels of harmful substances in the environment. This highlights the broader impact of chemical purity on public health and safety.In conclusion, the term analytically pure is more than just a descriptor of chemical purity; it embodies the rigor and precision required in scientific research. From pharmaceuticals to environmental monitoring, the reliance on analytically pure substances is crucial for obtaining valid and reliable results. As we continue to advance in various scientific fields, maintaining high standards for purity will remain a foundational principle that guides our discoveries and innovations.

在化学领域，术语分析纯指的是一种具有非常高纯度的物质，通常超过99%。这种纯度水平对于进行精确和准确的实验至关重要。当化学家提到某种化合物时，他们表示它适合用于分析方法，这意味着存在的任何杂质不会显著影响分析结果。使用分析纯物质的重要性不容小觑，特别是在研究和开发环境中，数据的完整性至关重要。例如，在制药研究中，必须以极大的精确度评估新药的功效和安全性。如果研究人员使用的化合物不是分析纯的，结果可能导致对药物有效性或毒性的错误结论。这可能对患者安全和监管批准过程产生严重影响。因此，确保试剂和化合物是分析纯的，是任何实验室工作流程中的关键步骤。此外，获得分析纯物质的过程通常涉及多个纯化步骤，例如重结晶、蒸馏或色谱法。每种方法旨在消除可能干扰质谱或核磁共振（NMR）光谱等分析技术的杂质。例如，在重结晶过程中，将化合物溶解在高温溶剂中，然后允许其冷却，促进纯晶体的形成，同时将杂质留在溶液中。这种对细节的仔细关注确保最终产品符合分析纯的严格标准。此外，分析纯物质的重要性超出了实验室。在环境科学中，例如，检测水样中的污染物需要使用分析纯的标准。如果用于校准的标准受到污染，可能导致测量不准确，从而低估环境中有害物质的水平。这突显了化学纯度对公共健康和安全的更广泛影响。总之，术语分析纯不仅仅是化学纯度的描述；它体现了科学研究所需的严谨性和精确性。从制药到环境监测，对分析纯物质的依赖对于获得有效且可靠的结果至关重要。随着我们在各个科学领域的不断进步，保持高纯度标准将始终是指导我们发现和创新的基本原则。