Development of Bio-inspired Composite Materials for the Detection of Traces of Silver Present in Water: Use of Taguchi Methodology to Design Low-cost Carbon Paste Electrodes Article uri icon

abstract

  • Carbon Paste Electrodes (CPE) modified with Grapefruit-Peels (GP) functionalized with Urea (GPU) and, Melamine (GPM) were designed for the detection of Ag in water. Taguchi L9 methodology was used to determine the optimal graphite-Active material ratio. The best electrochemical response was for CPE-GPU with an 80 : 20 ratio. The results obtained showed a linear detection range between 0.5 to 28 μg L−1, with a detection limit of 0.73 μg L−1 and a limit of quantification of 1.04 μg L−1. Attributable to CPE-GPU characteristics: electroactive surface area 0.175 cm2, roughness factor 3.87, resistance 0.09 Ω and, mostly −NH2 groups on its surface. The composite material offers a viable option to be used for the determination of silver traces in situ in industrial processes. © 2021 Wiley-VCH GmbH
  • Carbon Paste Electrodes (CPE) modified with Grapefruit-Peels (GP) functionalized with Urea (GPU) and, Melamine (GPM) were designed for the detection of Ag%2b in water. Taguchi L9 methodology was used to determine the optimal graphite-Active material ratio. The best electrochemical response was for CPE-GPU with an 80 : 20 ratio. The results obtained showed a linear detection range between 0.5 to 28 μg L−1, with a detection limit of 0.73 μg L−1 and a limit of quantification of 1.04 μg L−1. Attributable to CPE-GPU characteristics: electroactive surface area 0.175 cm2, roughness factor 3.87, resistance 0.09 Ω and, mostly −NH2 groups on its surface. The composite material offers a viable option to be used for the determination of silver traces in situ in industrial processes. © 2021 Wiley-VCH GmbH

publication date

  • 2021-01-01