Studies on Radioimmunoassay for Methamphetamine Excreted in Human Urine

Abstract

Methamphetamine excreted in urine of habitual users was analyzed by radioimmunoassay using specific antiserum prepared by the method previously described. As a labeled compound, ³H-methamphetamine was employed instead of the ¹²⁵I-methamphetamine derivative used in previous studies, on grounds of sensitivity. The results obtained by this radioimmunoassay were compared with those obtained by conventional methods, and good agreement was found.