shows successive additions of copper, between
20 mg L1 and 500 mg L1 at 20 mg L1 mercury solution. The
mercury signal started to be affected when the concentration
of copper was larger than 200 mg L1. The presence of
sodium chloride was evaluated for concentrations in the
range situated between 0.05 to 35 g L1 (the higher concentration
surpass the concentration of this ion in sea water).
Along this concentration range, there was not observed
significant decrease of the analytical signal for a solution
containing 10 mg L1 of mercury