Effect of DDTC concentration
Influence of DDTC concentration on the
HLLE of Pb was evaluated in the concentration range
of 0.001–0.05 M. The results showed that the
absorbance was increased with the increasing of
DDTC concentrations up to 0.008 M and then
remained constant. In this study, DDTC concentration
(0.01 M) was chosen to account for other extractable
species