isotopic tracer

简明释义

同位素指示剂

英英释义

例句

1.Researchers employed an isotopic tracer 同位素示踪剂 to determine the sources of nutrients in agricultural runoff.

研究人员采用同位素示踪剂 isotopic tracer 来确定农业径流中营养物质的来源。

2.The use of an isotopic tracer 同位素示踪剂 helped to reveal the pathways of carbon cycling in forest ecosystems.

使用同位素示踪剂 isotopic tracer 有助于揭示森林生态系统中碳循环的路径。

3.In environmental studies, scientists often use an isotopic tracer 同位素示踪剂 to track the movement of pollutants in water bodies.

在环境研究中，科学家们经常使用同位素示踪剂 isotopic tracer 来追踪水体中污染物的运动。

4.Medical researchers utilize an isotopic tracer 同位素示踪剂 in PET scans to observe metabolic processes in the body.

医学研究人员在PET扫描中利用同位素示踪剂 isotopic tracer 来观察身体中的代谢过程。

5.An isotopic tracer 同位素示踪剂 can be used to study groundwater flow and its interaction with surface water.

可以使用同位素示踪剂 isotopic tracer 来研究地下水流动及其与地表水的相互作用。

作文

The use of isotopic tracer technology has revolutionized various fields of science, particularly in the realms of biology, chemistry, and environmental science. An isotopic tracer is a substance that contains a radioactive isotope, which can be used to track the movement of materials within biological systems or chemical reactions. By incorporating these isotopes into molecules, scientists can observe how they behave over time, providing invaluable insights into complex processes. For instance, in medical research, isotopic tracers are frequently employed in imaging techniques such as Positron Emission Tomography (PET) scans. These scans allow doctors to visualize metabolic processes in the body, helping to diagnose diseases like cancer at an early stage. The isotopic tracer emits positrons that collide with electrons, resulting in gamma rays that can be detected by the PET scanner. This non-invasive technique provides critical information about the health of tissues and organs, enabling targeted treatment plans.Moreover, in environmental science, isotopic tracers play a crucial role in understanding nutrient cycles and pollution sources. For example, researchers can use nitrogen isotopes to trace the origin of nutrients in aquatic ecosystems. By analyzing the ratios of different nitrogen isotopes in water samples, scientists can determine whether the nitrogen comes from agricultural runoff, sewage, or natural sources. This information is essential for developing effective strategies to mitigate pollution and protect water quality.In addition to their applications in medicine and environmental studies, isotopic tracers are also widely used in geology and archaeology. Geologists utilize these tracers to study the age of rocks and minerals through techniques like radiometric dating. By measuring the decay of radioactive isotopes within a sample, they can infer its age and understand geological processes over millions of years. Similarly, archaeologists apply isotopic tracer analysis to learn about ancient diets and migration patterns. By examining the isotopic composition of human remains, they can deduce the types of food consumed and even the geographical origins of individuals.Despite their numerous benefits, the use of isotopic tracers does come with challenges. The handling of radioactive materials requires strict safety protocols to ensure the well-being of researchers and the environment. Additionally, interpreting the data derived from isotopic tracers can be complex, necessitating advanced analytical techniques and a deep understanding of the underlying science.In conclusion, isotopic tracers are powerful tools that enhance our understanding of various scientific phenomena. Whether in medicine, environmental science, geology, or archaeology, these tracers enable researchers to track and analyze processes that would otherwise remain hidden. As technology continues to advance, the potential applications of isotopic tracers will undoubtedly expand, paving the way for new discoveries and innovations that can benefit society as a whole.

同位素示踪剂（isotopic tracer）技术的使用彻底改变了科学的多个领域，特别是在生物学、化学和环境科学中。isotopic tracer 是一种含有放射性同位素的物质，可用于追踪材料在生物系统或化学反应中的运动。通过将这些同位素纳入分子，科学家可以观察它们随时间的行为，从而提供对复杂过程的宝贵见解。例如，在医学研究中，isotopic tracers 经常应用于正电子发射断层扫描（PET）等成像技术。这些扫描允许医生可视化身体内的代谢过程，帮助在早期阶段诊断癌症等疾病。isotopic tracer 发出正电子，与电子碰撞，产生伽马射线，可以被PET扫描仪检测到。这种非侵入性的技术提供了有关组织和器官健康的关键信息，使得能够制定针对性的治疗计划。此外，在环境科学中，isotopic tracers 在理解营养循环和污染源方面发挥着至关重要的作用。例如，研究人员可以使用氮同位素追踪水生生态系统中的营养物质来源。通过分析水样中不同氮同位素的比率，科学家可以确定氮是来自农业径流、污水还是自然来源。这些信息对于制定有效的减污策略和保护水质至关重要。除了在医学和环境研究中的应用外，isotopic tracers 还广泛应用于地质学和考古学。地质学家利用这些示踪剂研究岩石和矿物的年龄，通过放射性定年技术来实现。通过测量样本中放射性同位素的衰变，他们可以推断其年龄，并了解数百万年来的地质过程。同样，考古学家应用isotopic tracer 分析来了解古代饮食和迁徙模式。通过检查人类遗骸的同位素组成，他们可以推测出所消费的食物类型，甚至个体的地理来源。尽管有许多好处，使用isotopic tracers确实也面临挑战。处理放射性材料需要严格的安全协议，以确保研究人员和环境的安全。此外，解释从isotopic tracers中获得的数据可能很复杂，需要先进的分析技术和对基础科学的深刻理解。总之，isotopic tracers 是增强我们对各种科学现象理解的强大工具。无论是在医学、环境科学、地质学还是考古学中，这些示踪剂使研究人员能够追踪和分析否则会保持隐藏的过程。随着技术的不断进步，isotopic tracers 的潜在应用无疑会扩大，为新的发现和创新铺平道路，从而惠及整个社会。