isotopic tracer

简明释义

同位素示踪剂

英英释义

例句

1.The team utilized an isotopic tracer to study nutrient cycling in the soil.

该团队利用同位素示踪剂研究土壤中的养分循环。

2.Geologists often employ an isotopic tracer to determine the age of rock formations.

地质学家常常使用同位素示踪剂来确定岩层的年龄。

3.The researchers used an isotopic tracer to track the movement of water in the ecosystem.

研究人员使用同位素示踪剂来追踪水在生态系统中的流动。

4.By injecting an isotopic tracer, the doctors could monitor the metabolism of the patient.

通过注射同位素示踪剂，医生能够监测患者的新陈代谢。

5.In medical imaging, an isotopic tracer can help visualize blood flow in organs.

在医学成像中，同位素示踪剂可以帮助可视化器官中的血流。

作文

The use of isotopic tracer techniques has revolutionized the fields of environmental science, biology, and medicine. An isotopic tracer is a substance that contains a detectable isotope, which can be used to track the movement of materials through various processes. By incorporating an isotope into a molecule, scientists can follow its path and understand how it interacts with other substances in a system. This method has become invaluable for researchers who seek to uncover complex biological pathways and environmental interactions.In environmental science, isotopic tracers are used to study the movement of water and nutrients in ecosystems. For example, researchers may use stable isotopes of oxygen or hydrogen to trace the sources and pathways of groundwater. This information is crucial for managing water resources and understanding the impacts of climate change. By analyzing the isotopic composition of water samples, scientists can determine whether water is coming from precipitation, surface water, or groundwater, providing insights into hydrological cycles.In the field of biology, isotopic tracers play a vital role in metabolic studies. Researchers often use carbon isotopes to investigate how organisms assimilate and utilize different carbon sources. For instance, by labeling specific carbon compounds with a heavy isotope, scientists can track how these compounds are metabolized within an organism. This technique has led to significant discoveries about photosynthesis, respiration, and nutrient cycling in living systems.Moreover, isotopic tracers have important applications in medicine, particularly in diagnostic imaging and treatment. One common application is in positron emission tomography (PET) scans, where radioactive isotopes are used to visualize metabolic processes in the body. By injecting a patient with a radiolabeled compound, doctors can monitor the distribution and uptake of that compound in tissues, allowing for early detection of diseases such as cancer. The ability to non-invasively observe biological processes in real-time has greatly enhanced our understanding of human health and disease.Furthermore, isotopic tracers can also be utilized in studying animal migration patterns. By analyzing the isotopic signatures in animal tissues, researchers can infer the geographic origins of migratory species and their movement patterns over time. This information is crucial for conservation efforts, as it helps scientists understand the ecological needs of species and the impacts of habitat loss.In conclusion, the application of isotopic tracers across various scientific disciplines highlights their importance in advancing our understanding of natural processes. From tracking water movement in ecosystems to diagnosing medical conditions, isotopic tracers provide a powerful tool for researchers. As technology continues to improve, the potential for new discoveries using isotopic tracers is limitless, paving the way for innovations that can address some of the most pressing challenges facing our world today.

同位素示踪剂技术的使用已经彻底改变了环境科学、生物学和医学等领域。同位素示踪剂是指含有可检测同位素的物质，可以用于追踪材料在各种过程中移动的路径。通过将同位素融入分子中，科学家可以跟踪其路径并理解它如何与系统中的其他物质相互作用。这种方法对于寻求揭示复杂生物途径和环境相互作用的研究人员来说变得不可或缺。在环境科学中，同位素示踪剂用于研究水和养分在生态系统中的运动。例如，研究人员可能使用稳定的氧或氢同位素来追踪地下水的来源和路径。这些信息对于管理水资源和理解气候变化的影响至关重要。通过分析水样的同位素组成，科学家可以确定水是来自降水、地表水还是地下水，从而提供对水文循环的洞察。在生物学领域，同位素示踪剂在代谢研究中发挥着重要作用。研究人员经常使用碳同位素来调查生物体如何同化和利用不同的碳源。例如，通过用重同位素标记特定的碳化合物，科学家可以追踪这些化合物在生物体内的代谢过程。这项技术导致了关于光合作用、呼吸作用和营养循环的重要发现。此外，同位素示踪剂在医学中也具有重要应用，特别是在诊断成像和治疗方面。一种常见的应用是在正电子发射断层扫描（PET）中，其中使用放射性同位素可视化体内的代谢过程。通过向患者注射一种放射性标记化合物，医生可以监测该化合物在组织中的分布和吸收，从而实现早期疾病（如癌症）的检测。非侵入性观察生物过程的能力大大增强了我们对人类健康和疾病的理解。此外，同位素示踪剂还可以用于研究动物迁徙模式。通过分析动物组织中的同位素特征，研究人员可以推断迁徙物种的地理来源及其随时间的运动模式。这些信息对于保护工作至关重要，因为它帮助科学家理解物种的生态需求以及栖息地丧失的影响。总之，同位素示踪剂在各个科学学科中的应用突显了它们在推动我们理解自然过程中的重要性。从追踪生态系统中的水运动到诊断医疗条件，同位素示踪剂为研究人员提供了一种强大的工具。随着技术的不断进步，使用同位素示踪剂进行新发现的潜力是无限的，为应对当今世界面临的一些最紧迫的挑战铺平了道路。