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Rubidium Carbonate
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Nano-metal Rubidium
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Rubidium-87 (⁸⁷Rb)
Rubidium-87 (⁸⁷Rb)
Rubidium-85 (⁸⁵Rb)
Rubidium-85 (⁸⁵Rb)
Ytterbium-176 (¹⁷⁶Yb)
Ytterbium-176 (¹⁷⁶Yb)
Strontium-88 (⁸⁸Sr)
Strontium-88 (⁸⁸Sr)
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Rubidium-87 (⁸⁷Rb) .jpg

Rubidium-87 (⁸⁷Rb) Isotope: China Suppliers & Factory for Nuclear Magnetic Resonance Applications

Essential Properties of Rubidium-87
Rubidium-87 (⁸⁷Rb) is a naturally occurring radioactive isotope of rubidium, with an abundance of approximately 27.83%, while the remaining portion consists of the stable isotope ⁸⁵Rb. This isotope features a remarkably long half-life (T₁/₂) of 4.97×10¹⁰ years, categorizing it as a long-lived β⁻ decay nuclide. The decay of ⁸⁷Rb produces the stable isotope ⁸⁷Sr and emits β particles with a maximum energy of 283 keV. ⁸⁷Rb possesses a nuclear spin of I=3/2 and an impressive nuclear magnetic moment (μ=2.751 μₙ), making it highly suitable for nuclear magnetic resonance (NMR) applications. If you are looking for reliable suppliers and manufacturers in China for Rubidium-87, our factory offers high-quality isotopes for research and industrial purposes.

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    Product Details

    Application in geochronology

    The ⁸⁷Rb-⁸⁷Sr decay system is one of the important methods of radioactive dating and is suitable for dating ancient rocks (such as granite and meteorites). Its decay constant λ=1.42×10⁻¹¹ yr⁻¹. By measuring the ratio of ⁸⁷Sr/⁸⁶Sr and ⁸⁷Rb/⁸⁶Sr, combined with the isochron method, the geological age can be calculated, and the time span can reach billions of years. This technology plays a key role in studying the evolution of the earth's crust, the formation history of the moon and meteorites.

    Atomic physics and quantum technology

    ⁸⁷Rb is one of the core elements of cold atomic physics, and its D₂ line (780.24 nm, 5²S₁/₂→5²P₃/₂ transition) is a common transition in laser cooling and Bose-Einstein condensation (BEC) experiments. The ground state hyperfine structure (F=1,2) of ⁸⁷Rb can be used for precision measurements, such as atomic clocks (rubidium atomic clock frequency standard ~6.834682 GHz) and quantum simulation experiments. In addition, the Feshbach resonance characteristics of ⁸⁷Rb make it attract much attention in ultracold molecular preparation and quantum many-body research.

    Medical and tracer applications

    ⁸⁷Rb can be generated by neutron activation of ⁸⁶Rb (n,γ), and its short-lived isotope ⁸²Rb (T₁/₂=1.27 min) is a myocardial perfusion imaging agent for positron emission tomography (PET) and is used for the diagnosis of coronary heart disease. Although ⁸⁷Rb itself is not directly used in medicine, its decay chain products (such as ⁸⁷Sr) have certain reference value in bone metabolism research.

    Nuclear safety and handling

    ⁸⁷Rb has weak radioactivity (specific activity ~3.2×10⁻⁴ Bq/g), and usually does not require special protection, but long-term exposure to high-concentration ⁸⁷Rb compounds (such as RbCl) still needs to be avoided from inhalation or ingestion. In the laboratory, ⁸⁷Rb is often stored in the form of chloride or carbonate and needs to be sealed to prevent moisture.

    Conclusion

    ⁸⁷Rb, as an important long-lived radionuclide, plays an irreplaceable role in geochronology, cold atomic physics and nuclear medicine. Its unique performance in quantum precision measurement technology indicates its potential application value in quantum computing and high-precision sensing in the future.

    Frequently Asked Questions (FAQ)

    Q: How is ⁸⁷Rb used to determine the age of ancient rocks?

    A: By utilizing the ⁸⁷Rb-⁸⁷Sr decay system (with a decay constant of λ=1.42×10⁻¹¹ yr⁻¹). Geologists measure the ratios of ⁸⁷Sr/⁸⁶Sr and ⁸⁷Rb/⁸⁶Sr, applying the isochron method to calculate geological ages spanning up to billions of years.

    Q: Why is ⁸⁷Rb important in quantum technology and atomic physics?

    A: ⁸⁷Rb is a foundational element in cold atomic physics. Its D₂ transition line (780.24 nm) is widely used in laser cooling and Bose-Einstein condensation (BEC) experiments, as well as in high-precision rubidium atomic clocks operating at approximately 6.83 GHz.

    Q: Is ⁸⁷Rb directly used in medical diagnostics?

    A: No, ⁸⁷Rb itself is not directly used. However, it can be generated by the neutron activation of ⁸⁶Rb, and its short-lived isotope ⁸²Rb acts as a vital myocardial perfusion imaging agent in PET scans for diagnosing coronary heart disease.

    Q: What are the radiation safety risks associated with ⁸⁷Rb?

    A: ⁸⁷Rb exhibits very weak radioactivity with a specific activity of ~3.2×10⁻⁴ Bq/g, requiring no special radiation shielding. However, standard precautions should be taken to avoid long-term exposure, inhalation, or ingestion of concentrated ⁸⁷Rb compounds.

    Q: How should ⁸⁷Rb compounds be stored in laboratories?

    A: In laboratory settings, ⁸⁷Rb is typically stored in the form of chloride or carbonate. These chemical compounds must be kept in tightly sealed containers to prevent moisture absorption and degradation.

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