Rubidium-85 (⁸⁵Rb) Suppliers and Factory in China - Stable Isotope for NMR Research
Atomic Physical Properties
- D₁ line (794.6 nm): 5²S₁/₂→5²P₁/₂ transition
- D₂ line (780.0 nm): 5²S₁/₂→5²P₃/₂ transition
Quantum Technology Application
As a fermion isotope (nuclear spin half-integer), the Bose-Fermi hybrid system composed of ⁸⁵Rb and ⁸⁷Rb is an important platform for studying quantum degenerate gas interactions. It is used to simulate the Hubbard model in optical tweezers experiments.
The magnetically insensitive state of ⁸⁵Rb (m_F=0) can be used as a coherent state storage carrier, and the decoherence time can reach several seconds.
Use the ⁸⁵Rb/⁸⁷Rb isotope shift (1.2 GHz) to calibrate the laser frequency standard.
Industrial and Scientific Research Applications
⁸⁵Rb vapor chamber is used to make narrow-band (<0.1 nm) optical filters to suppress background noise in laser communications.
Enrichment of ⁸⁵Rb labeled compounds to study the function of potassium ion channels in organisms.
⁸⁵Rb NMR (frequency 16.5 MHz at 2.35 T) is used to study the local structure of rubidium compounds.
Isotope Separation Technology
Mass spectrometry separation achieving a purity of >99.9%.
Using the unique absorption line of ⁸⁵Rb (such as 780.241 nm) for precise targeted excitation.
Based on the isotope fractionation effect of Rb crown ether complex.
Safety and Operation
Conclusion
Frequently Asked Questions
The ground state electronic configuration of ⁸⁵Rb is [Kr]5s¹.
The D₁ line corresponds to the 5²S₁/₂→5²P₁/₂ transition at 794.6 nm, while the D₂ line corresponds to the 5²S₁/₂→5²P₃/₂ transition at 780.0 nm.
The magnetically insensitive state of ⁸⁵Rb (m_F=0) serves as an effective coherent state storage carrier, allowing decoherence times to reach up to several seconds.
The primary extraction methods include electromagnetic separation (providing purity >99.9%), laser separation (targeting specific lines like 780.241 nm), and chemical exchange methods using crown ether complexes.
No, ⁸⁵Rb is a stable isotope and does not pose radioactive hazards. However, in its pure metallic form, it must be handled with standard alkali metal safety precautions (moisture-proof and fire-proof) due to chemical reactivity. Its compounds exhibit low toxicity (LD₅₀>5 g/kg).