Detection of nitrification inhibitor dicyandiamide: A direct electrochemical approach

Thiyagarajan Natarajan*, Manavalan Gopinathan, Murugan Thiruppathi, Omotayo Adeniyi, Jen Lin Chang, Jyh Myng Zen, Solomon Tesfalidet, Jyri Pekka Mikkola

*Korresponderande författare för detta arbete

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

3 Citeringar (Scopus)
3 Nedladdningar (Pure)

Sammanfattning

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.

OriginalspråkEngelska
Artikelnummer100658
Antal sidor7
TidskriftFood Chemistry: X
Volym18
DOI
StatusPublicerad - 30 juni 2023
MoE-publikationstypA1 Tidskriftsartikel-refererad

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