tracer atom

简明释义

示踪原子

英英释义

例句

1.In nuclear medicine, a patient might be given a dose containing a tracer atom 示踪原子 to help visualize the function of their organs.

在核医学中，患者可能会被给予含有tracer atom 示踪原子的剂量，以帮助可视化他们器官的功能。

2.Using a tracer atom 示踪原子 in a chemical reaction allows chemists to identify the products formed.

在化学反应中使用tracer atom 示踪原子可以让化学家识别生成的产物。

3.The tracer atom 示踪原子 helps scientists understand metabolic pathways by tracing the flow of nutrients.

通过追踪营养物质的流动，tracer atom 示踪原子帮助科学家理解代谢途径。

4.Researchers often use a tracer atom 示踪原子 in environmental studies to track the movement of pollutants in water systems.

研究人员通常在环境研究中使用tracer atom 示踪原子来追踪水系统中污染物的运动。

5.In geology, a tracer atom 示踪原子 can indicate the age of rocks and minerals through isotopic analysis.

在地质学中，tracer atom 示踪原子可以通过同位素分析指示岩石和矿物的年龄。

作文

In the field of science, particularly in chemistry and biology, the concept of a tracer atom plays a crucial role in understanding complex processes. A tracer atom is an atom that is incorporated into a molecule or compound in order to track the movement or transformation of that molecule during a reaction or within a biological system. This technique is invaluable for researchers who are trying to unravel the mysteries of how substances interact at the molecular level.For instance, when studying metabolic pathways in living organisms, scientists often use tracer atoms to trace the flow of nutrients and energy. By replacing a stable atom in a molecule with a radioactive or isotopic variant, researchers can monitor where that molecule goes and how it behaves over time. This method allows them to visualize complex biochemical reactions that would otherwise be invisible.One common application of tracer atoms is in the field of medical imaging. Positron emission tomography (PET) scans utilize radioactive tracers that emit positrons as they decay. These tracers are often designed to mimic biological molecules, allowing doctors to observe physiological processes in real-time. For example, a glucose molecule tagged with a radioactive isotope can help identify areas of high metabolic activity in the brain, which is essential for diagnosing conditions like tumors or neurodegenerative diseases.Moreover, tracer atoms are not limited to biological systems; they are also used extensively in environmental science. Researchers can track the movement of pollutants through ecosystems by using isotopes as tracers. This helps in understanding how contaminants spread in water bodies or soil, providing critical information for environmental protection efforts.The use of tracer atoms also extends to geology and archaeology. In geological studies, isotopes can help determine the age of rocks and fossils through radiometric dating methods. In archaeology, tracer atoms can be used to analyze ancient artifacts, providing insights into the materials used by past civilizations and their trade practices.In conclusion, the use of tracer atoms is a powerful tool across various scientific disciplines. It enables researchers to gain insights into complex systems, from cellular metabolism to environmental dynamics. Understanding the behavior of these atoms allows scientists to develop better models and make more informed decisions in fields ranging from medicine to ecology. As technology advances, the applications of tracer atoms are likely to expand, paving the way for new discoveries and innovations that can benefit society as a whole.

在科学领域，特别是在化学和生物学中，示踪原子的概念在理解复杂过程方面发挥着至关重要的作用。示踪原子是指被纳入分子或化合物中的原子，以便跟踪该分子在反应或生物系统内的运动或转化。这种技术对研究人员解开物质在分子水平上如何相互作用的奥秘至关重要。例如，在研究生物体内的新陈代谢途径时，科学家们经常使用示踪原子来追踪营养物质和能量的流动。通过用放射性或同位素变体替换分子中的稳定原子，研究人员可以监测该分子的去向及其随时间的行为。这种方法使他们能够可视化复杂的生化反应，这些反应在其他情况下将是不可见的。示踪原子的一个常见应用是在医学成像领域。正电子发射断层扫描（PET）利用放射性示踪剂，在衰变过程中发出正电子。这些示踪剂通常被设计为模仿生物分子，从而使医生能够实时观察生理过程。例如，用放射性同位素标记的葡萄糖分子可以帮助识别大脑中高代谢活动的区域，这对于诊断肿瘤或神经退行性疾病等病症至关重要。此外，示踪原子不仅限于生物系统；它们还广泛应用于环境科学。研究人员可以通过使用同位素作为示踪剂来追踪污染物在生态系统中的移动。这有助于理解污染物在水体或土壤中的传播，为环境保护工作提供关键信息。示踪原子的使用还扩展到地质学和考古学。在地质研究中，同位素可以通过放射性定年方法帮助确定岩石和化石的年龄。在考古学中，示踪原子可以用于分析古代文物，提供有关过去文明所用材料及其贸易实践的见解。总之，示踪原子的使用是各个科学学科中一种强大的工具。它使研究人员能够深入了解复杂系统，从细胞代谢到环境动态。理解这些原子的行为使科学家能够开发更好的模型，并在医学到生态学等领域做出更明智的决策。随着技术的进步，示踪原子的应用可能会扩展，为新的发现和创新铺平道路，从而使整个社会受益。