A new potentiometric thiosalicylamide-functionalized polysiloxane carbon paste electrode for lead(II) determination

► A new approach for determination of low concentrations of lead(II) in various samples. ► A effective soft base lead(II) binder is chemically loaded to polysiloxane. ► The polymer as ionophore is utilized in designing a carbon paste electrode. ► Electrode showed accurate and reproducible detection of lead(II) in various samples.