isotopic
Meaning: Relating to or involving isotopes — atoms of the same chemical element that have different numbers of neutrons and therefore different atomic masses.
Isotopic analysis is a powerful tool in fields ranging from archaeology (carbon-14 dating) to geology (determining the age of rocks), forensic science (tracing the geographic origin of materials), and climate science (reconstructing past temperatures from ice cores). The term collocates with ratio, analysis, composition, dating, and signature. Isotopic labelling is a standard technique in biochemistry for tracking molecules through metabolic pathways. Outside specialist contexts, the word is rare.
Examples
- Isotopic analysis of the skeleton's tooth enamel revealed that the individual had grown up in a region far from where they were buried. 对骸骨牙釉质的同位素分析揭示,该个体是在远离其埋葬地点的地区长大的。El análisis isotópico del esmalte dental del esqueleto reveló que el individuo había crecido en una región muy alejada del lugar de enterramiento.骨格の歯のエナメル質の同位体分析により、その人物が埋葬地から遠く離れた地域で育ったことが判明した。해골의 치아 에나멜에 대한 동위원소 분석 결과, 그 인물이 매장지에서 멀리 떨어진 지역에서 자랐음이 밝혀졌다.
- The geochemist measured isotopic ratios in the rock samples to determine the age of the volcanic formation. 地球化学家测量了岩石样本中的同位素比值,以确定该火山构造的年龄。El geoquímico midió las relaciones isotópicas de las muestras de roca para determinar la edad de la formación volcánica.地球化学者は岩石試料の同位体比を測定し、その火山性地層の年代を決定した。지구화학자는 암석 시료의 동위원소비를 측정하여 화산 지층의 연대를 결정했다.
- Climate scientists use isotopic data from Antarctic ice cores to reconstruct temperature records spanning hundreds of thousands of years. 气候科学家利用南极冰芯中的同位素数据来重建跨越数十万年的温度记录。Los científicos del clima utilizan datos isotópicos de testigos de hielo antárticos para reconstruir registros de temperaturas que abarcan cientos de miles de años.気候科学者は南極の氷床コアから得られた同位体データを用いて、数十万年にわたる温度記録を復元する。기후 과학자들은 남극 빙하 코어에서 얻은 동위원소 데이터를 이용하여 수십만 년에 걸친 온도 기록을 복원한다.
Pronunciation
Usage Guide
Context: scientific, academic
Tone: neutral
Origin & History
From Greek isos (equal) + topos (place), referring to isotopes occupying the same position in the periodic table. The term isotope was coined by Frederick Soddy in 1913; isotopic followed shortly after.
Cultural Context
Era: Modern
Generation: All ages
Social background: Universal
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