Dependence of IP on Scan Rate Potential [Se(Iv)] = 2Ppb, 0.1M Hcl Base, E Dep = -0.3V, T Dep = 90S [Se-Cyst] = 25Ppb, 0.1M Hcl Base, E Dep = -0.2V, T Dep = 90S
If the time is too long, the metal ions will diffuse into the mercury drop, affecting the peak height (I p ). Therefore, the electrolysis time for both substances can be chosen in the range of 90s ÷ 150s with the concentration of Se(IV) being 2ppb and Se-Cyst being 25ppb. In fact, we use the ...

![Dependence of IP on Scan Rate Potential [Se(Iv)] = 2Ppb, 0.1M Hcl Base, E Dep = -0.3V, T Dep = 90S [Se-Cyst] = 25Ppb, 0.1M Hcl Base, E Dep = -0.2V, T Dep = 90S](https://tailieuthamkhao.com/uploads/2022/09/13/nghien-cuu-xac-dinh-mot-so-dang-selen-trong-hai-san-bang-phuong-phap-von-ampe-6-1-445x306.gif)

