Stripping voltammetry microprobe (SPV): A new approach in electroanalysis

被引：10

作者：

Gulppi, M. A. ^{[1
]}

Vejar, N. ^{[1
]}

Tamayo, L. ^{[1
]}

Azocar, M. I. ^{[1
]}

Vera, C. ^{[1
]}

Silva, C. ^{[1
]}

Zagal, J. H. ^{[1
]}

Scholz, F. ^{[2
]}

Paez, M. A. ^{[1
]}

机构：

[1] Univ Santiago Chile, Dept Quim Mat, Fac Quim & Biol, Santiago 3363, Chile

[2] Ernst Moritz Arndt Univ Greifswald, Inst Biochem, D-17487 Greifswald, Germany

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2014年 / 41卷

关键词：

Stripping voltammetry; Precipitation; Immobilization; Electrochemistry; Microanalysis; HALIDE CRYSTALS; SILVER; SORPTION;

D O I：

10.1016/j.elecom.2014.01.012

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

This paper describes how electrochemical trace analysis can be performed in micro samples based on the precipitation of a sparingly soluble compound and its immobilization on an electrode surface. Precipitation is performed in a solution droplet put on the electrode in an upside-down position in air. The solvent of the droplet is then evaporated and the immobilized residue is subjected to a voltammetric measurement after introducing the electrode to an electrolyte solution. This methodology can be used for the quantification of dissolved ions (after precipitation) as well as for that of dispersed solids. As example, here the quantification of silver ions following precipitation as AgCl is described. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：8 / 11

页数：4

共 21 条

[1] [Anonymous], 1988, J ANAL CHEM USSR, V43, P929
[2] A flow microdevice for studying the initiation and propagation of a single pit
Aouina, N.
Balbaud-Celerier, F.
Huet, F.
Joiret, S.
Perrot, H.
Rouillard, F.
Vivier, V.
[J]. CORROSION SCIENCE, 2012, 62 : 1 - 4
[3] Bond A.M., 1980, MODERN POLAROGRAPHIC
[4] ELECTROCHEMICAL, THERMODYNAMIC, AND MECHANISTIC DATA DERIVED FROM VOLTAMMETRIC STUDIES ON INSOLUBLE METALLOCENES, MERCURY HALIDE AND SULFIDE COMPOUNDS, MIXED SILVER-HALIDE CRYSTALS, AND OTHER METAL-COMPLEXES FOLLOWING THEIR MECHANICAL TRANSFER TO A GRAPHITE ELECTRODE
BOND, AM
SCHOLZ, F
[J]. LANGMUIR, 1991, 7 (12) : 3197 - 3204
[5] Brunswick P., [No title captured], Patent No. [France 0753461, 0753461]
[6] Brunswick P., Patent, Patent No. [PCT EP2008/052211, 2008052211]
[7] Coupling Microdroplet Microreactors with Mass Spectrometry: Reading the Contents of Single Droplets Online
Fidalgo, Luis M.
Whyte, Graeme
Ruotolo, Brandon T.
Benesch, Justin L. P.
Stengel, Florian
Abell, Chris
Robinson, Carol V.
Huck, Wilhelm T. S.
[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2009, 48 (20) : 3665 - 3668
[8] Nucleation at three-phase junction lines: in situ atomic force microscopy of the electrochemical reduction of sub-micrometer size silver and mercury(I) halide crystals immobilized on solid electrodes
Hasse, U
Wagner, K
Scholz, F
[J]. JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 2004, 8 (10) : 842 - 853
[9] Abnormal electrochemical skin conductance in cystic fibrosis
Hubert, Dominique
Brunswick, Philippe
Calvet, Jean-Henri
Dusser, Daniel
Fajac, Isabelle
[J]. JOURNAL OF CYSTIC FIBROSIS, 2011, 10 (01) : 15 - 20
[10] Imaging and speciation of trace elements in biological environment
Lobinski, R.
Moulin, C.
Ortega, R.
[J]. BIOCHIMIE, 2006, 88 (11) : 1591 - 1604

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