Electrochemical Detection of Small Volumes of Glyphosate with Mass-Produced Non-Modified Gold Chips

Abstract

<jats:title>Abstract</jats:title><jats:p>Mass-produced printed circuit board (PCB) electrodes were used as electrochemical cells to detect the widely-used herbicide glyphosate. Square wave voltammetry (SWV) was used to determine the presence of glyphosate in aqueous Cu(NO<jats:sub>3</jats:sub>)<jats:sub>2</jats:sub> solution. Optimal measurement conditions for the detection of glyphosate with PCB electrodes were found. It was determined that glyphosate was able to soak into the growing plants from the substrate. Glyphosate-contaminated plant juice was distinguished from control samples using the PCB electrode. Glyphosate-contaminated plants were found to have DNA mutations.</jats:p>

Cheap and Mass-Producible Electrochemical Sensor of Hydrogen Peroxide

“…The PCB chip was designed to fit into a quick-change connector in the electrochemical cell, making it easily and quickly replaceable. PCB chips containing the WE and RE were prepared as described elsewhere [27] and replaced before each measurement.…”

Electrochemically mediated multi‐modal detection strategy‐driven sensor platform to detect and quantify pesticides

“…[19,20] Other electrochemical detection sensor platforms for use in pesticide monitoring have been evaluated quite a bit for single analyte detection. These systems include testing based on cyclic voltammetry, [20,21] square wave voltammetry, [22] amperometry, [23] differential pulse voltammetry, [24] potentiometry and electrochemical impedance spectroscopy (EIS)-faradaic (label), [25] and non-faradaic (label-free) [26,27] modalities. As per our understanding and literature surveys, there has not been much work done in universal platforms that can be applied toward a holistic pesticide assessment system.…”