Derivatives of hydroxymethoxy mandelic acid (HMMA), homovanillic acid (HVA), antibodies and labelled substances prepared therefrom, and immunoassays using these

摘要

This invention relates to the production of derivatives of hydroxymethoxy mandelic acid (HMMA) and homvanillic acid (HVA), to their use in raising antibodies, and in the production of labelled compounds, and to the use of such materials in immunoassays for HMMA and HVA.