Hi @PJS
Im using a glassy carbon working electrode, Ag/AgCl reference electrodes, and a graphite as a auxiliar electrode. For preconcentration i use ConstantVoltage (-400mV, 45 sec) and for stripping i use LSV -(start:-1000mV, Stop:-100mV , slope:20 mV/sec). I'm trying to determinate lead between 10 ppm and 50 ppm. I would really appreciate it if you could show your results with the parameters you use.