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Improved production and processing of ⁸⁹Zr using a solution target.
Mukesh K Pandey1, Aditya Bansal1, Hendrik P Engelbrecht1
1Department of Radiology, Mayo Clinic Rochester MN 55905.
Nuclear Medicine and Biology
|October 17, 2015
Summary
This study improved cyclotron production of Zirconium-89 (89Zr) using a novel solution target and hydroxamate resin. The new methods increased yield and provided a biocompatible elution medium for 89Zr.
Area of Science:
- Radiochemistry
- Nuclear Medicine
- Materials Science
Background:
- Cyclotron production of Zirconium-89 (89Zr) is crucial for radiopharmaceuticals.
- Existing methods for 89Zr production and purification face challenges in yield and biocompatibility.
Purpose of the Study:
- To enhance the production yield of 89Zr using an improved solution target.
- To develop a practical synthesis for hydroxamate resin for 89Zr processing.
- To establish a biocompatible elution medium for 89Zr from the resin.
Main Methods:
- A new solution target (BMLT-2) with enhanced cooling was designed and tested.
- A one-pot synthesis was developed for hydroxamate resin.
- Zirconium-89 was trapped on hydroxamate resin and eluted using a phosphate buffer.
Main Results:
- The BMLT-2 target increased 89Zr production yield by over twofold compared to conventional targets.
- The new resin synthesis demonstrated high trapping efficiency (93-97%).
- Phosphate buffer elution achieved 91.7% efficiency with minimal metal contaminants, suitable for medical applications.
Conclusions:
- The BMLT-2 target and new resin synthesis significantly improve 89Zr production efficiency.
- Phosphate buffer elution offers a highly efficient and biocompatible method for 89Zr recovery.
- These advancements facilitate increased availability of 89Zr for clinical use.
