scholarly journals Application of screen-printed carbon electrode modified with lead in stripping analysis of Cd(II)

2017 ◽  
Vol 15 (1) ◽  
pp. 28-33 ◽  
Author(s):  
Katarzyna Tyszczuk-Rotko ◽  
Katarzyna Domańska ◽  
Karel Vytřas ◽  
Radovan Metelka ◽  
Agnieszka Nosal-Wiercińska ◽  
...  
Keyword(s):  
Film Growth ◽  
Film Formation ◽  
Anodic Stripping Voltammetry ◽  
Stripping Voltammetry ◽  
Carbon Support ◽  
Screen Printed Carbon Electrode ◽  
Voltammetric Studies ◽  
Lead Film ◽  
Screen Printed

AbstractIn the work presented, a lead film electrode was prepared in situ on a screen-printed carbon support using a reversibly deposited mediator (Zn) and applied to the determination of Cd(II) by anodic stripping voltammetry. The electrochemical method for lead film formation is based on a co-deposition of a metal of interest (Pb), with a reversibly deposited zinc mediator, followed by oxidation of zinc, with additional deposition of lead at the appropriate potential. It serves to increase the density of lead particles, promoting lead film growth, and consequently helps to improve the electrochemical properties of the electrode. This was confirmed by microscopic and voltammetric studies. The obtained detection limit of Cd(II) is equal to 6.6 × 10−9 mol L−1 (−1.6 V for 180 s and then −0.95 V for 5 s). The presented procedure was successfully applied to cadmium determination in Bystrzyca River water samples.

Determination of Copper(II) Through Anodic Stripping Voltammetry in Tartrate Buffer Using an Antimony Film Screen-printed Carbon Electrode

2017 ◽  
Vol 50 (18) ◽  
pp. 2920-2936 ◽  
Author(s):  
Andrzej Bobrowski ◽  
Mariola Maczuga ◽  
Agnieszka Królicka ◽  
Evangelia Konstanteli ◽  
Chrysavgi Sakellaropoulou ◽  
...  
Keyword(s):  
Anodic Stripping Voltammetry ◽  
Stripping Voltammetry ◽  
Carbon Electrode ◽  
Screen Printed Carbon Electrode ◽  
Anodic Stripping ◽  
Antimony Film ◽  
Determination Of Copper ◽  
Screen Printed

Simultaneous determination of trace Cd2+ and Pb2+ using GR/l-cysteine/Bi modified screen-printed electrodes

2018 ◽  
Vol 10 (40) ◽  
pp. 4945-4950 ◽  
Author(s):  
Chao Li ◽  
Xiaole Zhao ◽  
Xiaojun Han
Keyword(s):  
Graphene Oxide ◽  
Simultaneous Determination ◽  
Reduced Graphene Oxide ◽  
Anodic Stripping Voltammetry ◽  
Stripping Voltammetry ◽  
Screen Printed Electrode ◽  
Reduced Graphene ◽  
Anodic Stripping ◽  
Screen Printed

A GR/l-cys/Bi/SPE (reduced graphene oxide/l-cysteine/Bi/screen-printed electrode) was prepared to simultaneously determine Cd2+ and Pb2+ ions by using SWASV (square wave anodic stripping voltammetry).

scholarly journals Electrochemical Detection of Arsenite Using a Silica Nanoparticles-Modified Screen-Printed Carbon Electrode

Materials ◽  
2020 ◽  
Vol 13 (14) ◽  
pp. 3168
Author(s):  
Suhainie Ismail ◽  
Nor Azah Yusof ◽  
Jaafar Abdullah ◽  
Siti Fatimah Abd Rahman
Keyword(s):  
Electron Microscopy ◽  
Silica Nanoparticles ◽  
Low Cost ◽  
Anodic Stripping Voltammetry ◽  
Stripping Voltammetry ◽  
Carbon Electrode ◽  
Suggested Approach ◽  
Screen Printed Carbon Electrode ◽  
Modified Sensor ◽  
Screen Printed

Arsenic poisoning in the environment can cause severe effects on human health, hence detection is crucial. An electrochemical-based portable assessment of arsenic contamination is the ability to identify arsenite (As(III)). To achieve this, a low-cost electroanalytical assay for the detection of As(III) utilizing a silica nanoparticles (SiNPs)-modified screen-printed carbon electrode (SPCE) was developed. The morphological and elemental analysis of functionalized SiNPs and a SiNPs/SPCE-modified sensor was studied using field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX), and Fourier transform infrared spectroscopy (FTIR). The electrochemical responses towards arsenic detection were measured using the cyclic voltammetry (CV) and linear sweep anodic stripping voltammetry (LSASV) techniques. Under optimized conditions, the anodic peak current was proportional to the As(III) concentration over a wide linear range of 5 to 30 µg/L, with a detection limit of 6.2 µg/L. The suggested approach was effectively valid for the testing of As(III) found within the real water samples with good reproducibility and stability.

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