Simultaneous voltammetric determination of E. coli and S. typhimurium based on target recycling amplification using self-assembled hairpin probes on a gold electrode

2016 ◽  
Vol 184 (3) ◽  
pp. 745-752 ◽  
Author(s):  
Yuna Guo ◽  
Yu Wang ◽  
Su Liu ◽  
Jinghua Yu ◽  
Hongzhi Wang ◽  
...  
2012 ◽  
Vol 10 (1) ◽  
pp. 267-276 ◽  
Author(s):  
Dora Melucci ◽  
Simona Montalbani ◽  
Clinio Locatelli

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).


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

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