Simultaneous trace-levels determination of Hg(II) and Pb(II) ions in various samples using a modified carbon paste electrode based on multi-walled carbon nanotubes and a new synthesized Schiff base

Electrochemical determination of inorganic mercury and arsenic—A review

“…for Hg(II) with 3.5 min deposition time (Afkhami et al 2012a). Silica particles or different silica species functionalized with complexing groups was used for the modification of carbon paste electrodes.…”

Simultaneous electrochemical sensing of thallium, lead and mercury using a novel ionic liquid/graphene modified electrode

“…In order to meet this requirement, the inducing of metal ions-specific functional groups onto the electrode with the desired properties is particularly attractive [3,9,21,22,29]. For this purpose, L as a new synthesized ylide is introduced into the matrix of IL/Gr paste composite (Fig.…”

“…The performance of ASV using a chemically modified electrode (CME) is stronglyaffected by the electrode materials [21]. Chemically modified matrices are usually utilized to increase the surface area, conductivity and sensitivity of electrochemical sensors and to improve selective interactions between sensing layer and analytes [22][23][24].…”

Nanotechnology for Water Treatment

“…Under optimal conditions the limits of detection, were found to be 9.0 × 10 -4 and 6.0 ×10 -4 µ mol L -1 for mercury (II) and lead (II) respectively with a 90 as a preconcentration factor. In addition, the modified electrode displayed excellent reproducibility and selectivity, making it appropriate for the simultaneous analysis of mercury (II) and lead (II) in different wastewater systems [11]. Palladium-graphene nanocomposite and ions liquid was fabricated and tested as a sensor for chlorophenols.…”