Development of a deep-sea mercury sensor using in situ anodic stripping voltammetry

2015 ◽  
Vol 49 (6) ◽  
pp. 613-620 ◽  
Author(s):  
Masahiro Yamamoto ◽  
Hitoshi Kodamatani ◽  
Yuriko Kono ◽  
Akinori Takeuchi ◽  
Ken Takai ◽  
...  
Keyword(s):  
Deep Sea ◽  
Anodic Stripping Voltammetry ◽  
Stripping Voltammetry ◽  
Anodic Stripping ◽  
Mercury Sensor

Immunosensing of NT‐proBNP via Cu 2+ ‐based MOFs Biolabeling and in situ Microliter‐droplet Anodic Stripping Voltammetry

2020 ◽  
Vol 32 (8) ◽  
pp. 1754-1762
Author(s):  
Huan Liu ◽  
Yingying Chen ◽  
Yan Cheng ◽  
Qingji Xie ◽  
Rushi Liu ◽  
...  
Keyword(s):  
Anodic Stripping Voltammetry ◽  
Stripping Voltammetry ◽  
Anodic Stripping

Determination of manganese and zinc in coastal waters by anodic stripping voltammetry with a vibrating gold microwire electrode

2011 ◽  
Vol 8 (5) ◽  
pp. 475 ◽  
Author(s):  
Kristoff Gibbon-Walsh ◽  
Pascal Salaün ◽  
Constant M. G. van den Berg
Keyword(s):  
Coastal Waters ◽  
Anodic Stripping Voltammetry ◽  
Mercury Electrode ◽  
Stripping Voltammetry ◽  
Ease Of Use ◽  
In Situ Monitoring ◽  
Irish Sea ◽  
Oxidation Potentials ◽  
Anodic Stripping

Environmental contextMetals in the marine environment play a role in biological processes but can also be toxic. An electrochemical method with a simple microwire electrode is presented that facilitates detection of zinc and manganese in coastal waters. The method is very sensitive and will likely lead to the development of an in-situ monitoring apparatus. AbstractA vibrating, gold, microwire electrode (VGME) is used here to detect low nanomolar levels of dissolved Mn by anodic stripping chronopotentiometry (ASC) and sub-nanomolar levels of dissolved Zn by anodic stripping voltammetry (ASV) in seawater. Mn is detected using a deposition potential (Edep) of –1.35 V, and Zn using Edep = –0.9 V, at pH 8. The method is an example of under-potential deposition (UPD), with positive shifts of the metal oxidation potentials of 0.4–0.6 V compared to the mercury electrode. The limits of detection for Mn (1.4 nM) and for Zn (0.3 nM) in seawater with a 300-s plating time, are better than achieved using other non-mercury based electrodes and nearly as good as a mercury film electrode for Zn. The detection of sub-nanomolar Mn is subject to an unusual interference by arsenate, which lowers the sensitivity when the deposition time is extended beyond 300 s. The VGME has advantages related to robustness, stability and ease of use (no polishing, simple regeneration) facilitating on-site and in-situ use. Zn and Mn are readily measured in seawater of natural pH without the need for reagents, facilitating use of this method in a system for in-situ monitoring. The methods are applied here to coastal seawater (Liverpool Bay, Irish Sea) and can be used for freshwaters such as river water.

scholarly journals In situ fast analysis of cadmium in rice by diluted acid extraction-anodic stripping voltammetry

RSC Advances ◽  
2019 ◽  
Vol 9 (35) ◽  
pp. 19965-19972
Author(s):  
Jie-qiong Zhang ◽  
Ming-hui Zhou ◽  
Wei Tian ◽  
Yan-xiang Wu ◽  
Xi Chen ◽  
...  
Keyword(s):  
Anodic Stripping Voltammetry ◽  
Stripping Voltammetry ◽  
Acid Extraction ◽  
Fast Analysis ◽  
Anodic Stripping

Diluted acid extraction combined with an electrochemical platform achieve analysis on-site in fields or grain depots.

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