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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
Author(s) -
GarcíaMelendrez Jaime,
WarrenVega Walter M.,
ZárateGuzmán Ana I.,
CarrascoMarín Francisco,
GonzálezGutiérrez Linda V.,
RomeroCano Luis A.
Publication year - 2021
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.202100030
Subject(s) - detection limit , melamine , taguchi methods , materials science , graphite , composite number , carbon fibers , electrode , electrochemistry , response surface methodology , chemical engineering , composite material , chromatography , chemistry , engineering
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 L 9 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 cm 2 , roughness factor 3.87, resistance 0.09 Ω and, mostly −NH 2 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.

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