Radioactive iodine (125I) labeling of latex particles
 The invention disclosed in this application is directed towards developing a radioiodination method which is applicable to the labeling of 2.02 micrometer (.mu.m) and 0.37 micrometer (.mu.m) diameter polyvinyltoluene latex particles that have been used as an immunoadsorbent. More particularly the overall method includes using an oxidation-reduction chemical reaction for tagging latex particles. Two methods are described. One, the hydrochloric acid method; and two, the nitric acid method. 
The United States of America as represented by the Secretary of the Navy
G G
G21H G01N
inventional inventional
Gokaldas C. Chi Kuan
Parikh Ho