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Food Chemistry: X

Food Chemistry: X

IF: 6.5
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Detection of nitrification inhibitor dicyandiamide: A direct electrochemical approach

Published:30 June 2023 DOI: 10.1016/j.fochx.2023.100658 PMID: 37032745
Thiyagarajan Natarajan , Manavalan Gopinathan , Murugan Thiruppathi , Omotayo Adeniyi , Jen-Lin Chang , Jyh-Myng Zen , Solomon Tesfalidet , Jyri-Pekka Mikkola

Abstract

A single run approach for rapid detection of nitrification inhibitor, dicyandiamide (DCD) using electrogenerated chlorine assisted polymerization through azo bond, under acidic conditions and at a preanodized screen printed carbon electrode (SPCE*) is presented. The role of chloride containing support electrolyte in acidic medium along with oxygen functionalities/edge sites are found to be crucial for the successful oxidative polymerization and subsequent adsorption of oxidized products on the electrode surface. The SEM, cyclic voltammetry and X-ray photoelectron spectroscopy studies were used to characterize the polymer film formation. The system exhibited a linear range between 20 and 170?μM with a detection limit of 3?μM (S/N?=?3). The method was successfully tested for the detection of DCD in dairy and water samples. Simultaneous detection of DCD in the presence of melamine has also been demonstrated.

Substances (2)

Related products
Procduct Name CAS Molecular Formula Supplier Price
Melamine 108-78-1 C3H6N6 943 suppliers $5.00-$1593.90
Dicyandiamide 461-58-5 C2H4N4 916 suppliers $6.00-$1340.00

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