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Rubidium Carbonate
Rubidium Carbonate
Nano-metal Rubidium
Nano-metal Rubidium
Cesium Metal (Cs)
Cesium Metal (Cs)
Rubidium (Rb)
Rubidium (Rb)
Rubidium Chloride (RbCl)
Rubidium Chloride (RbCl)
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Cesium Chloride (CsCl)
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 for NMR Research - Top China Suppliers & Factory Available

Essential Characteristics of Rubidium-87
Rubidium-87 (⁸⁷Rb) is a naturally occurring radioactive isotope of rubidium, comprising about 27.83% of rubidium's total isotopic composition, with the remainder being the stable isotope ⁸⁵Rb. This isotope boasts a remarkable half-life (T₁/₂) of 4.97×10¹⁰ years, classifying it as a long-lived β⁻ decay nuclide. The decay process yields stable ⁸⁷Sr as its end product and emits β particles with a maximum energy of 283 keV. With a nuclear spin of I=3/2 and a significant nuclear magnetic moment (μ=2.751 μₙ), ⁸⁷Rb presents promising possibilities for research in nuclear magnetic resonance (NMR) applications. We, as a reputable supplier and factory located in China, are committed to providing high-quality rubidium isotopes for various scientific and industrial uses.

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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)

    1. What is the role of ⁸⁷Rb in geochronology?

    ⁸⁷Rb is used in the ⁸⁷Rb-⁸⁷Sr decay system, a major method of radioactive dating. By measuring ⁸⁷Sr/⁸⁶Sr and ⁸⁷Rb/⁸⁶Sr ratios, scientists can determine the geological age of ancient rocks and meteorites, covering time spans up to billions of years.

    2. How is ⁸⁷Rb applied in quantum technology?

    ⁸⁷Rb is a key element in cold atomic physics. Its D₂ transition line is widely used in laser cooling and Bose-Einstein condensation (BEC) experiments, while its ground state hyperfine structure is essential for rubidium atomic clocks and quantum simulations.

    3. Can ⁸⁷Rb be used for medical diagnostics?

    While ⁸⁷Rb itself is not directly used, its short-lived isotope ⁸²Rb (generated from ⁸⁶Rb) serves as a myocardial perfusion imaging agent in PET scans for diagnosing coronary heart disease. Additionally, its decay product ⁸⁷Sr is used in bone metabolism research.

    4. Is ⁸⁷Rb highly radioactive or dangerous?

    No, ⁸⁷Rb has weak radioactivity with a specific activity of approximately 3.2×10⁻⁴ Bq/g. It generally does not require special protection, though long-term exposure to high-concentration compounds should be managed to avoid inhalation or ingestion.

    5. How should ⁸⁷Rb be stored in a laboratory setting?

    In laboratories, ⁸⁷Rb is typically stored as stable compounds like rubidium chloride (RbCl) or rubidium carbonate. These compounds must be kept in sealed containers to prevent moisture absorption.

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