Stripping voltammetry with collection at a rotating ring—disk electrode

Johnson, Dennis C.; Allen, R. E.

doi:10.1016/0039-9140(73)80023-2

Cited by 42 publications

(14 citation statements)

References 9 publications

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“…Unlike ASVWC at rotating ring-disk [10,11] or flow-through series [12] electrodes, the ASVWC operation at the IDA does not require moving electrodes or solutions, and results in very high collection efficiencies. Such improvements are attributed to the nonlinear (edge effect) diffusional properties of the closely spaced microband electrodes.…”

Section: Resultsmentioning

confidence: 97%

“…Previous ASVWC rotating or flow-through electrode systems have been characterized with collection efficiencies (N) between 0.25 and 0.40 [10][11][12], indicating that a large fraction of the stripped metals is not reaching the second electrode. The narrow gap and nonlinear diffusional flux of the IDA system result in significantly larger collection efficiencies.…”

Section: Resultsmentioning

confidence: 99%

“…Among the electrodes used in ASV, the mercury film electrode (MFE) and hanging mercury drop electrode (HMDE) have gained most acceptance. One of the most important recent advances in ASV has been its coupling with ultramicroelectrode technology [2][3][4][5][6][7][8][9][10]. The use of microelectrodes in ASV is advantageous not only for microscale/microvolume measurements, but also for improving the plating efficiency (due to a greatly enhanced diffusional flux) and allowing assays of poorly conductive media (due to small ohmic drops).…”

Section: Introductionmentioning

confidence: 99%

“…Anodic stripping voltammetry with collection (ASVWC) represents an attractive approach for eliminating the major charging background current contribution in stripping voltammetric experiments [10][11][12]. Such procedure has been traditionally performed using rotating ring-disk electrodes, with the deposition and stripping being carried out at the disk, while holding the surrounding ring at a fixed negative potential sutiable for redeposition of the metal ions swept from the disk [10,11]. Because of the constant ring potential, its measured current has no charging current component, resuting in a series of reduction (collection) peaks over a flat background current.…”

Section: Introductionmentioning

confidence: 99%

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Anodic Stripping with Collection at Interdigitated Carbon Film Microelectrode Arrays

Wang¹,

Luo

Horiuchi

1998

Electroanalysis

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Interdigitated arrays of microband electrodes are used for highly sensitive anodic stripping with collection experiments. Compared to analogous experiments at rotating ring-disk electrodes, the interdigitated microelectrode array offers high collection efficiencies and the use of quiescent solutions. New lithographically fabricated carbon band microelectrodes, made by pyrolysis of 3,4,9,10-perylenetetracarboxylic dianhydride, are employed for supporting the mercury film. Metal cations stripped from one microband electrode diffuse across the narrow gap and are redeposited (collected) at the second electrode, kept at a suitable negative potential. The elimination of the charging current (accrued from the fixed collection potential) results in well-defined peaks, superimposed on a constant background, and hence in a greatly improved detectability. Experimental variables affecting the collection efficiency and the response, including the gap and scan rate, are examined.

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Section: Resultsmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Anodic Stripping with Collection at Interdigitated Carbon Film Microelectrode Arrays

Wang¹,

Luo

Horiuchi

1998

Electroanalysis

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“…Johnson & Allen [20] developed a technique which they termed stripping voltammetry with collection (SVWC) which utilises a rotating ring-disc electrode. Accumulation and stripping of a metal or insoluble metal salt is carried out on the disc electrode, as is usual in ASV, but a reproducible proportion of the metal ion that is stripped subsequently from the disc electrode is collected at the ring electrode which is set at a suitable ®xed potential.…”

Section: Some Existing Names Of Techniquesmentioning

confidence: 99%

Terminology and Convention for Electrochemical Stripping Analysis

Fogg¹,

Wang²

1999

Pure and Applied Chemistry

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Introduction: The term electrochemical stripping analysis is applied to a family of procedures involving a preconcentration of the determinand (or a salt or derivative of the determinand) onto the working electrode, prior to its direct or indirect determination by means of an electroanalytical technique1,2. Such a combination of an effective accumulation step with an advanced measurement procedure results in a very low detection limit, and makes stripping analysis one of the most important techniques in trace analysis. The original stripping analysis method involved the cathodic electrodeposition of amalgam-forming metals onto a hanging mercury drop (working) electrode, followed by the anodic voltammetric determination of the accumulated metal during a positive-going potential scan3. Numerous advances during the 1980s and 1990s, however, have led to the development of alternative preconcentration schemes and advanced measurement procedures that further enhance the scope and power of stripping analysis4,5. As a consequence, numerous variants of stripping analysis exist currently, differing in their method of accumulation and measurement. A recent text on stripping analysis is by Brainina and Neyman,6 and recent reviews on adsorptive stripping voltammetry are by Kalvoda and Kopanica,7 van den Berg,8 and Paneli and Voulgaropoulos.9Problems in selecting an effective nomenclature for stripping analysis are discussed in this document. Stripping analysis incorporates a two step process - accumulation and determination - and the technique can be considered to be a 'hyphenated technique'. The method of determination has been included, usually, in naming a particular technique, but often the method of accumulation has not. In some cases, eg. adsorptive stripping voltammetry, the method of accumulation is given but no indication is given as to whether the determination is cathodic or anodic (or whether it measures a capacitance current due to desorption).The purpose of this document is to recommend classification, and relevant terminology, for the different procedures used in electrochemical stripping analysis.

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Trace element determination by electrochemical methods

Wandruszka

1994

Determination of Trace Elements

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Stripping voltammetry with collection at a rotating ring—disk electrode

Cited by 42 publications

References 9 publications

Anodic Stripping with Collection at Interdigitated Carbon Film Microelectrode Arrays

Anodic Stripping with Collection at Interdigitated Carbon Film Microelectrode Arrays

Terminology and Convention for Electrochemical Stripping Analysis

Trace element determination by electrochemical methods

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