Cu(II) Adsorption onto a Biopolymer Extracted from a Vegetable Waste: Application to a Miniaturized Electrochemical Sensor

Rapid and on-site simultaneous electrochemical detection of copper, lead and mercury in the Amazon river

“…Electrochemical-based measurements present several advantages that overcome the limitation of these heavy metals detection systems [15]. In particular, stripping voltammetry methods can be considered as a powerful technique for field analysis of heavy metal ions, due to the small size of the equipment, easy installation, accurateness, sensitivity and the possibility of multi-analyte detection [16][17][18][19][20][21]. The use of screen-printed electrodes (SPEs) as electrochemical electrodes for the environmental monitoring of heavy metals has gained popularity over the past decade because of low cost (mass-production), disposability (avoiding tedious pre-treatment steps), versatility and suitability for real-time sensing and, depending on the technique used, ease-of-operation by unskilled users [22].…”

Nopalea cochenillifera Biomass as Bioadsorbent in Water Purification

“…These biopolymers should be biodegradable, easily accessible, and inexpensive, and they should involve easy operation, have a lower sensitivity to toxic loadings, and not alter the pH of the treated water. Recently, biopolymers from different plants have been studied [20,21]. These have chemical structures with many hydroxyphenolic groups that give them the property of forming complexes with many macromolecules, such as proteins, hydrated carbons, or metal ions [22].…”