How to Use isotope in a Sentence

isotope

noun

• The peaks occur at around the first half-life of that isotope.
  — John Timmer, Ars Technica, 8 Nov. 2017
• Cesium-137 is the last of that deadly trio of isotopes.
  — Serhii Plokhy, Time, 26 Apr. 2018
• The team measured isotopes in quartz to date the soil to 1.4 million years old.
  — Will Sullivan, Smithsonian Magazine, 7 Mar. 2024
• To get pH values, the authors turned to boron isotopes, which act as a proxy, tracking the pH of the oceans.
  — John Timmer, Ars Technica, 30 Aug. 2017
• These isotopes were dated to the same era, around 1.7 to 3.2 million years ago.
  — Christian Thorsberg, Smithsonian Magazine, 14 June 2024
• This was the first case of an isotope with two different half-lives.
  — Artemis Spyrou, The Conversation, 24 May 2022
• The day of remembrance is, in its own way, an isotope of that openness.
  — Sarah Scoles, Scientific American, 27 Jan. 2022
• But that’s where a radioactive isotope called carbon-14 may be able to help.
  — Daniel Oberhaus, Wired, 31 Aug. 2020
• This sodium-39 was the most massive isotope of sodium known to exist.
  — Wired, 22 Nov. 2019
• Lithium isotopes, too, record a sudden change in the ocean that could be the result of seafloor eruptions.
  — Scott K. Johnson, Ars Technica, 8 Feb. 2018
• An isotope of silicon, such as silicon-29, does have a spin.
  — IEEE Spectrum, 15 June 2024
• The microbes will consume these extra-heavy stable isotopes and pass them through the food web from one species to the next.
  — Amina Khan, latimes.com, 20 Apr. 2018
• Once the isotopes were prepared and the cyclotron was running, the process became a waiting game.
  — Max Springer, Scientific American, 24 July 2024
• By matching the isotope profiles in the tusk with the isotopes in the current landscape, the researchers could track where the mammoth ate over the years.
  — Sara Harrison, Wired, 12 Aug. 2021
• After the tusk was cut in half, the scientists used a laser to knock off specks along the length of it for isotope analysis.
  — New York Times, 12 Aug. 2021
• The most common isotope, carbon-12, is also the lightest.
  — Kate Baggaley, Popular Science, 21 Aug. 2020
• But the isotope test got us down to basically five guys.
  — Gl Archive, National Geographic, 6 June 2017
• The closest isotope matches were for West Africa and Europe.
  — Marta Musso, WIRED, 5 July 2024
• The isotopes analyzed were mostly from young goats and pigs.
  — Elizabeth Rayne, Ars Technica, 6 July 2024
• Many of the above radioactive isotopes were released into the ocean at the time of the disaster in 2011—and some traveled.
  — Chris Baraniuk, WIRED, 18 July 2023
• In the isotope lab, the scientists found the fingerprints of water that nourished the plants for thousands of years.
  — Ned Rozell, Anchorage Daily News, 26 Sep. 2020
• The isotopes suggest that this cat was one such honored captive.
  — Ryan P. Smith, Smithsonian, 19 Mar. 2018
• The team also used ancient DNA from 25 of the bones to refine the results of their isotope analysis.
  — Zach Zorich, Discover Magazine, 10 Feb. 2021
• The second was the fraction of oxygen that was from a specific isotope (18O).
  — John Timmer, Ars Technica, 11 Aug. 2022
• Analysis of isotopes has been tested as a way to tell if a plant was harvested from the wild.
  — The Economist, 19 Oct. 2017
• The colder the temperature, the more that heavier isotopes are present.
  — Yereth Rosen, Anchorage Daily News, 4 Aug. 2017
• So, the researchers focused on a single type of proxy: the ratio of oxygen isotopes found in the shells of sea organisms.
  — John Timmer, Ars Technica, 20 Sep. 2024
• Harmful isotopes were carried by the winds as far as Ireland within a week.
  — The Economist, 4 June 2019
• But Flux points out that the low number of facilities that make this isotope means future shortages are likely.
  — Chris Baraniuk, WIRED, 27 Nov. 2024
• This battery would be powered by a diamond surrounding a radioactive isotope of carbon known as carbon-14.
  — Jess Thomson, Newsweek, 5 Dec. 2024

Last Updated: 30 Jan 2025