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Electrochemical sensor based on low silica X zeolite modified carbon paste for carbaryl determination.

ABSTRACT: A new and simple approach for carbaryl determination in natural sample was proposed using Low Silica X (LSX) zeolite modified carbon paste electrode. LSX zeolite with a porous structure was incorporated into carbon paste electrode in the appropriate portion. The prepared electrode was then characterized using scanning electron microscopy, cyclic voltammetry and electrochemical impedance spectroscopy. Various experimental parameters as the zeolite amounts, pH, accumulation time, and differential pulse voltammetric parameters were optimized. Under optimal conditions, a linear response was obtained in the range of 1-100 µM of carbaryl using differential pulse voltammetry with detection limit of 0.3 µM (S/N = 3). The sensors showed good selectivity, stability, and reproducibility and has been successfully applied for detection of carbaryl in tomato samples with good recoveries.

SUBMITTER: Salih FE

PROVIDER: S-EPMC5602751 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature

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Electrochemical sensor based on low silica X zeolite modified carbon paste for carbaryl determination.

Salih Fatima Ezzahra FE Achiou Brahim B Ouammou Mohamed M Bennazha Jamal J Ouarzane Aicha A Younssi Saad Alami SA El Rhazi Mama M

Journal of advanced research 20170807 6

A new and simple approach for carbaryl determination in natural sample was proposed using Low Silica X (LSX) zeolite modified carbon paste electrode. LSX zeolite with a porous structure was incorporated into carbon paste electrode in the appropriate portion. The prepared electrode was then characterized using scanning electron microscopy, cyclic voltammetry and electrochemical impedance spectroscopy. Various experimental parameters as the zeolite amounts, pH, accumulation time, and differential ...[more]

PMID: 28948047

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