Simultaneous determination of lead, copper and cadmium onto mercury film supported on wax impregnated carbon paste electrode

Electrocatalytic oxidation of l-tyrosine at carboxylic acid functionalized multi-walled carbon nanotubes modified carbon paste electrode

“…In our continual effort to employ CPE and modified CPE for electroanalytical applications [31][32][33][34][35][36][37][38], in the present work, our aim was to fabricate a non-enzymatic sensor for Tyr. To achieve this, we have modified CPE by bulk modifying it using COOH-MWCNTs in the CPE matrix and employed it for the sensitive determination of Tyr in the presence of interfering molecules.…”

Determination of trace heavy Metals by Sequential Injection-anodic Stripping Voltammetry using Bismuth Film Screen-printed Carbon Electrode

“…An additional advantage of ASV over AAS, ICP-AES or ICP-MS is simplicity of the instrumentation, which is relatively inexpensive, requires low electrical power and low maintenance, and is portable as well as suitable for automation. [1][2][3][4] Combining stripping voltammetry with flow systems has significant advantages over batch analysis, such as a high level of automation, speed of analysis, improvement of accuracy and precision, less risk of contamination and cost-effective operation. [5][6][7][8] Sequential injection analysis (SIA) is one of the flow-analysis technique suited to stripping techniques that employ a preconcentration stage of the analyte on the working electrode before an actual measurement.…”

Application of nanocrystalline graphite-like pyrolytic carbon film electrode for voltammetric sensing of lead

“…Anodic stripping voltammetery (ASV) is recognized as an effective technique for detection of trace levels of heavy metals because of remarkably low detection limits, sensitivity, and specificity [2,3]. Although in the past years, hanging drop mercury and mercury-coated electrodes [4][5][6] have been successfully employed in ASV for metal ion detection, still there is a need to develop alternate electrodes because of toxicity, volatility, high background current, and difficulties in the determination of metals with stripping potentials more positive than that of mercury. Bi-modified or Bi-based composite modified electrodes have been used successfully as the alternatives, with comparable or superior performance than those of mercury or other alternate metal-based electrodes such as Ir, Ag, and Au [7][8][9][10].…”