Determination of copper metals in leachate using potentiometric method by concentration cells

The potentiometric method of cell type concentration is used to analyze the copper metal in leachate. This method is relatively good because it has a correlation coefficient of 0.9997 and linear region in the concentration range 1×10-5 1×10-3 mol L-1. The precision of this potentiometric method is low because the persent of RSD produced is 0.6% with an average accuracy 0f 95.35%. The detection limit (LoD) of the measurable method is 1.085×10-6 mol L-1 with LoQ 1.313×10-6 mol L-1. While the LoD instrument 1.217×10-6 mol L-1 and LoQ 1.560×10-6 mol L-1. In addition, this method is very selective with the selectivity coefficient of -3.7 and it has uncertainty of measurement 9.7×10-7 ± 1.282×10-6 to 9.12×10-5 ± 3.5×10-5. Potentiometric method of cell type of concentration has an optimum condition at pH5 and temperature 30˚C.The conditions of copper in leachate water renged from 9.253×10-5 to 8.696×10-4 mol L-1