How to Use isotope in a Sentence

isotope

noun

• The team measured isotopes in quartz to date the soil to 1.4 million years old.
  — Will Sullivan, Smithsonian Magazine, 7 Mar. 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
• 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
• 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
• The second was the fraction of oxygen that was from a specific isotope (18O).
  — John Timmer, Ars Technica, 11 Aug. 2022
• When analyzing the samples, the team found that the soils were highly depleted of the isotope carbon-13.
  — Elizabeth Gamillo, Smithsonian Magazine, 18 Jan. 2022
• Meanwhile Wooller and his colleagues were looking at the strontium and other isotopes in Kik’s tusk.
  — Richard Grant, Smithsonian Magazine, 24 Oct. 2023
• The oxygen isotope ratios of the samples go through three distinct phases.
  — John Timmer, Ars Technica, 11 Aug. 2022
• To find the answer, the researchers turned to mass spectrometry, a technique that can measure the mass of atomic isotopes.
  — Saugat Bolakhe, Quanta Magazine, 17 July 2023
• Her goal is to create maps using a variety of isotopes.
  — Maddie Bender, Smithsonian Magazine, 8 Jan. 2024
• Tritium, a second isotope of the same material, may be there as well.
  — Kat Friedrich, Popular Mechanics, 13 Sep. 2022
• Two snippets of feathers were cut, too, to assist with isotope studies.
  — Paul A. Smith, Milwaukee Journal Sentinel, 4 Dec. 2021
• Jones urged Musk to watch out for radioactive isotopes being slipped into his food.
  — Christiaan Hetzner, Fortune, 11 Dec. 2023
• Although the world has changed considerably since woolly mammoths roamed, the unique isotope ratios in Alaskan rocks and soil have more or less stayed the same.
  — Sara Harrison, Wired, 12 Aug. 2021
• The ratios of these isotopes can be a fingerprint for a marine location, as the ratios vary from place to place, and over time in ocean water.
  — Byelizabeth Pennisi, science.org, 27 Feb. 2023
• Nature does not provide a simple way of creating the isotope carbon-12 and the elements above it.
  — Paul Halpern, Scientific American, 18 Aug. 2021
• The team analyzed strontium isotope ratios in bones of three humans, a horse, a dog and a possible pig buried at Heath Wood.
  — Margaret Osborne, Smithsonian Magazine, 3 Feb. 2023
• The isotopes stick to those materials and the water flows on, a little cleaner than before.
  — Chris Baraniuk, WIRED, 18 July 2023
• All uranium is radioactive, and each isotope has its own unique half-life.
  — Kathryn Higley, The Conversation, 16 June 2023
• The carbon isotope ratios in the paddlefish bones also match up with this pattern.
  — Riley Black, Smithsonian Magazine, 23 Feb. 2022
• One telltale sign of a near-Earth supernova is the presence of the radioactive isotope Iron-60.
  — Jennifer Leman, Popular Mechanics, 31 Dec. 2021
• Methane emitted by fossil sources has more of the carbon-13 isotope than that produced from wetlands or cattle.
  — Steven Mufson, Anchorage Daily News, 26 Oct. 2022
• When a neutrino is absorbed by an atom of chlorine, an atom of the radioactive isotope argon 37 is formed.
  — Mark Fischetti, Scientific American, 14 May 2022
• Plasma: Made up of two isotopes of hydrogen (deuterium and tritium), the plasma is the fuel that drives the fusion process.
  — IEEE Spectrum, 15 July 2023
• Thanks to the carbon isotope labeling, there’s a whole bunch of data on exactly what types of energy the runners burned, and from where.
  — Alex Hutchinson, Outside Online, 15 Sep. 2021
• This will create an isotope, an atom with a different number of neutrons, which might not be stable.
  — WIRED, 8 Sep. 2023
• The seeds were dated by measuring their levels of carbon isotopes.
  — Brian Handwerk, Smithsonian Magazine, 5 Oct. 2023
• By studying isotope signatures in Kik’s tusk, Dr. Wooller and his colleagues were able to answer those questions.
  — New York Times, 12 Aug. 2021

Last Updated: 28 May 2024