A sensitive method was modified by using a combination of a slotted silica
tube atom trap and an enrichment procedure for the determination of cadmium
and lead in human urine. The enrichment method involves the collection of
Cd and Pb chelates synthesized by using cupferron on activated carbon. Urin
e samples were taken from accumulator workers and control groups. The detec
tion limits obtained for cadmium and lead were 0.03 and 0.27 mu g L-1, resp
ectively.