Fig. 2

Left measured Cu concentration after addition of 1 mM Cu into solution containing 0, 0.5, 1, 2, 4, and 5 M NaCl. Right comparison of measured with total (real) Cu concentration in 5 M chloride solution
Left measured Cu concentration after addition of 1 mM Cu into solution containing 0, 0.5, 1, 2, 4, and 5 M NaCl. Right comparison of measured with total (real) Cu concentration in 5 M chloride solution