Fig. 3
Platinum concentrations (mean ± SEM) in two different elution solutions, i.e., 8 M HCl (n = 5) and a mixture of 4.5 mL 6 M HNO3 and 0.5 mL 12 M HCl (n = 4), with increasing elution time
Fig. 3 | Environmental Sciences Europe
Platinum concentrations (mean ± SEM) in two different elution solutions, i.e., 8 M HCl (n = 5) and a mixture of 4.5 mL 6 M HNO3 and 0.5 mL 12 M HCl (n = 4), with increasing elution time