Abstract

The preparation of stable and immunoreactive radioiodinated clonidine for the development of a radioimmunoassay of clonidine is described. Tyrosylmethyl ester (TME) conjugate of carboxylic acid derivative of clonidine was radioiodinated using chloramine T as the oxidizing agent. The radioiodinated clonidine was purified by thin layer chromatography, gel filtration and solvent extraction. Radiochemical purity, specific activity and immunoreactivity were determined. The stability of the labeled compound during storage was tested in various solvents at different temperatures.

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