Abstract:
Employing Bratton and Marshall's technique
of diazotization and coupltng, a method
has been standardized for the estimation of
p-ethylamino-p'-aminodiphenyl sulphone in
urine, faeces, blood and body tissues. Some constituents of urine have been found to interfere with the development of colour in these estimations. This has been circumvented
by treating urine with hot hydrochloric acid. Satisfactory recoveries of the added drull have been obtained from faeces and from most of the tissues excepting the brain.
