Add time:07/28/2019         Source:sciencedirect.com

A new copper doped natural montmorillonite modified carbon paste electrode (Cu2 +-Mt-CPE) was developed as a new highly sensitive and selective voltammetric sensor for on-line monitoring of Propineb (cas 12071-83-9) fungicide. The optimization and evaluation of the developed sensor were performed using square wave voltammetry and cyclic voltammetry techniques. The results show that the Cu2 + exchanged natural montmorillonite acts as an efficient electrocatalyst to detect propineb. Under the optimized conditions, a good sensitivity and selectivity to propineb was obtained at Cu2 +-Mt-CPE with a low detection limit of about 1 μM and wide linear range from 5 to 30 μM. The developed method was successfully applied for the determination of propineb in river and sea water samples with a good recovery.

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