Highly sensitive and selective determination of malathion in vegetable extracts by an electrochemical sensor based on Cu-metal organic framework

Recent advancements in non-enzymatic electrochemical sensor development for the detection of organophosphorus pesticides in food and environment

“…Electrodes are modified to exhibit a high affinity towards MTN, resulting in the interference of the normal electrochemical signal due to MTN attachment on the electrode surface. Al'abri et al synthesized a porous coordination polymer with benzene-1,2,4,5 tetracarboxylic acid ( BTCA ), piperazine ( P ), copper ( Cu ), and carbon paste ( CP ) to modify carbon paste electrode ( CPE ) [ 143 ]. The well-defined porosity of the porous coordination polymer provides the electrode with improved selectivity.…”

Non-enzymatic electrochemical sensors based on nanomaterials for detection of organophosphorus pesticide residues

“…Al'Abr et al 139 used a BTCA-P-Cu-CP (copper-based porous coordination polymer) modified CPE (carbon paste electrode) to detect malathion. The high porosity of BTCA-P-Cu-CP increases the adsorption of malathion and thus affects the redox reaction of CuO.…”

“…Due to the heterometallic synergy between Mn 2+ and Fe 3+ ions, both the adsorption and electrocatalytic effect of the sensor on chlorpyrifos were increased. Al'Abr et al 139 used a BTCA-P-Cu-CP (copper-based porous coordination polymer) modied CPE (carbon paste electrode) to detect malathion. The high porosity of BTCA-P-Cu-CP increases the adsorption of malathion and thus affects the redox reaction of CuO.…”

A Highly Sensitive Electrochemical Sensor Based on Electrocatalytic Reduction Effect of Cu2+ on Trace Determination of Malathion in Soil and Other Complex Matrices

“…Recently, a series of electrochemical techniques have been reported for trace determination of reducible pesticides on various modified electrodes, including mercury [3,20,[30][31][32][33]. Pulse polarography [32,33] and cathodic/anodic stripping voltammetric techniques at HMDE and other modified electrodes [34][35][36][37][38][39][40][41][42] for trace determination of malathion and other analogs have been reported. However, most of the published sensors-based modified electrodes still have many drawbacks, such as complications in the synthesis, fabrication, characterization, and interference by other thiols [18][19][20].…”