Mutual interference problems in the simultaneous voltammetric determination of trace total mercury(ii) in presence of copper(ii) at gold electrode. Applications to environmental matrices

2010 ◽  
Vol 2 (11) ◽  
pp. 1784 ◽  
Author(s):  
Clinio Locatelli
Keyword(s):  
Gold Electrode ◽  
Total Mercury ◽  
Mutual Interference ◽  
Voltammetric Determination ◽  
Environmental Matrices ◽  
Simultaneous Voltammetric Determination ◽  
Interference Problems

scholarly journals Optimization of analytical procedures for the simultaneous voltammetric determination of total Hg(II) in presence of Cu(II) in environmental matrices

2012 ◽  
Vol 10 (1) ◽  
pp. 267-276 ◽  
Author(s):  
Dora Melucci ◽  
Simona Montalbani ◽  
Clinio Locatelli
Keyword(s):  
Reference Materials ◽  
Gold Electrode ◽  
Analytical Procedure ◽  
Sea Water ◽  
Differential Pulse ◽  
Voltammetric Determination ◽  
Standard Reference Materials ◽  
Environmental Matrices ◽  
Simultaneous Voltammetric Determination

AbstractThe present work reports the critical comparison about the employment of three different supporting electrolytes (0.1 mol L−1 HClO4, 0.01 mol L−1 EDTA-Na2 + 0.06 mol L−1 NaCl + 2.0 mol L−1 HClO4 and 0.1 mol L−1 KSCN + 0.001 mol L−1 HClO4) and their instrumental and chemical optimisation for the simultaneous voltammetric determination of total mercury(II) and copper(II) in sediments and sea water at gold electrode, especially discussing the reciprocal interference problems.The differential pulse anodic stripping voltammetric (DPASV) measurements were carried out using a conventional three-electrode cell: a gold electrode (GE) as working electrode, a platinum wire and an Ag‖AgCl‖KClsat as auxiliary and reference electrodes, respectively.The analytical procedure was verified by the analysis of standard reference materials: Estuarine Sediment BCR-CRM 277, River Sediment BCR-CRM 320 and Mercury in Water NIST-SRM 1641d.Once set up on the standard reference materials, the analytical procedure was transferred and applied to sediments and sea waters sampled in a lagoon ecosystem connected with Adriatic Sea (Ravenna area, Italy).

Simultaneous voltammetric determination of paracetamol and caffeine in pharmaceutical formulations using a boron-doped diamond electrode

Talanta ◽  
2009 ◽  
Vol 78 (3) ◽  
pp. 748-752 ◽  
Author(s):  
Bruna Cláudia Lourenção ◽  
Roberta Antigo Medeiros ◽  
Romeu C. Rocha-Filho ◽  
Luiz Henrique Mazo ◽  
Orlando Fatibello-Filho
Keyword(s):  
Pharmaceutical Formulations ◽  
Voltammetric Determination ◽  
Boron Doped Diamond ◽  
Diamond Electrode ◽  
Boron Doped ◽  
Boron Doped Diamond Electrode ◽  
Simultaneous Voltammetric Determination
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