Related Experiment Video
Updated: Jul 10, 2026

Enhancing Efficiency and Radiolabeling Yields of Carbon-11 Radioligands for Clinical Research Using the Loop Method
Published on: December 20, 2024
DMSO increases radioiodination yield of radiopharmaceuticals
Ketai Wang1, S James Adelstein, Amin I Kassis
1Department of Radiology, Armenise Building Room D2-137, 200 Longwood Avenue, Harvard Medical School, Boston, MA 02115, USA.
Abstract:
A high-yield radioiodination method for various types of molecules is described. The approach employs DMSO as precursor solvent, a reaction ratio of 2-5 precursor molecules per iodine atom, 5-10 microg oxidant, and a 10-25 microl reaction volume. The solution is vortexed at room temperature for 1-5 min and progress of the reaction is assessed by HPLC. Radioiodinated products are obtained in > or = 95% yield and meet the requirements for radiotracer imaging, biodistribution studies, and molecular and cellular biology research.

