TY - JOUR
T1 - Detection of nitrification inhibitor dicyandiamide
T2 - A direct electrochemical approach
AU - Natarajan, Thiyagarajan
AU - Gopinathan, Manavalan
AU - Thiruppathi, Murugan
AU - Adeniyi, Omotayo
AU - Chang, Jen Lin
AU - Zen, Jyh Myng
AU - Tesfalidet, Solomon
AU - Mikkola, Jyri Pekka
N1 - Publisher Copyright:
© 2023 The Author(s)
PY - 2023/6/30
Y1 - 2023/6/30
N2 - 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.
AB - 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.
KW - Dairy products
KW - Denitrification
KW - Dicyandiamide
KW - Electropolymerization
KW - Screen printed carbon electrode
UR - https://www.scopus.com/pages/publications/85151023086
UR - https://res.slu.se/id/publ/fe2c6b2b-5861-43c5-86d0-c1c3ee48cdce
U2 - 10.1016/j.fochx.2023.100658
DO - 10.1016/j.fochx.2023.100658
M3 - Journal article
AN - SCOPUS:85151023086
SN - 2590-1575
VL - 18
JO - Food Chemistry: X
JF - Food Chemistry: X
M1 - 100658
ER -