This work demonstrates for the first time the application of solid-contact Pb -selective electrode in the2+ adsorption study of Pb onto humic acid. Compared with other techniques, one advantage of the2+ electrode is that it offers the possibility of real-time and continuous Pb monitoring. Results show thatthe potential stability, selectivity, and pH working range of the proposed electrode make it a2+ convenient and promising tool for the investigation of Pb adsorption.
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