Electrochemical detection in liquid flow analytical techniques: Characterization and classification (IUPAC Technical Report)

Tóth, Klára; Štulı́k, Karel; Kutner, Włodzimierz; Fehér, Zsófia; Lindner, Ernő

doi:10.1351/pac200476061119

Cited by 69 publications

(38 citation statements)

References 45 publications

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“…Intensively stirred or flowing solutions can remove the "residual" traces of primary ion contamination from the ISE surfaces, which could not be prevented by membrane optimization. In fact, better detection limits were achieved in vigorously stirred or flowing solutions [11,12,63]. Very low currents can also be used to compensate zero-current ion fluxes [11,12].…”

Section: Detection Limit Of Ion-selective Electrodesmentioning

confidence: 99%

Performance evaluation criteria for preparation and measurement of macro- and microfabricated ion-selective electrodes (IUPAC Technical Report)

Lindner¹,

Umezawa

2008

Pure and Applied Chemistry

234

168

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Over the last 30 years, IUPAC published several documents with the goal of achieving standardized nomenclature and methodology for potentiometric ion-selective electrodes (ISEs). The ISE vocabulary was formulated, measurement protocols were suggested, and the selectivity coefficients were compiled. However, in light of new discoveries and experimental possibilities in the field of ISEs, some of the IUPAC recommendations have become outdated. The goal of this technical report is to direct attention to ISE practices and the striking need for updated or refined IUPAC recommendations which are consistent with the state of the art of using macro- and microfabricated planar microelectrodes. Some of these ISE practices have never been addressed by IUPAC but have gained importance with the technological and theoretical developments of recent years. In spite of its recognized importance, a generally acceptable revision of the current IUPAC recommendations is far beyond the scope of this work.

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Section: Detection Limit Of Ion-selective Electrodesmentioning

confidence: 99%

Performance evaluation criteria for preparation and measurement of macro- and microfabricated ion-selective electrodes (IUPAC Technical Report)

Lindner¹,

Umezawa

2008

Pure and Applied Chemistry

234

168

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“…Flow electrochemical cells described in the literature comprise many configurations with wall-jet, cascade and tubular shape configurations the most commonly used in analytical methodologies [5]. Tubular shaped configurations coupled to flow systems allows better working characteristics regarding cleaning or conditioning procedures as well as determinations rate.…”

Section: Introductionmentioning

confidence: 99%

Construction and Evaluation of a Gold Tubular Electrode for Flow Analysis: Application to Speciation of Antimony in Water Samples

et al. 2007

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A tubular gold electrode (TGE) is described for the first time by summarizing the important aspects of its construction and evaluation. Applicability of the TGE is evaluated in the speciation of Sb(III) and Sb(V) using anodic stripping voltammetry in a single flow manifold. Studies with surface active interferences and metallic cations were performed. The proposed conditions for antimony determination showed good tolerance towards cationic, anionic and nonionic surface active substances. A linear response for antimony was obtained for solutions containing significant amounts of several metallic cations. Linear calibration curves for Sb(III) were obtained in the range 1 -10 ppb with a detection limit of 0.19 ppb (CV ¼ 2.91%, n ¼ 5, [Sb(III)] ¼ 5 ppb). For Sb(V), linear calibration curves were in the range 1 -15 ppb with a detection limit of 0.32 ppb (CV ¼ 1.41%, n ¼ 5, [Sb(V)] ¼ 5 ppb). The figures of merit achieved sustain for the good applicability of the proposed method as it allows the determination of antimony at levels below maximum values permitted in consuming waters. Results of antimony concentration determined in water samples were validated against the ICP-MS reference procedure or compared with reference water samples.

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“…This system consists of a voltammetric cell with a simple system to insure renewal of the sample under well-controlled hydrodynamic conditions and a potentiostat. The voltammetric cell is a flow-through cell [14,17], based on an impinging jet flow configuration [18 -19]. An impinging jet flow configuration consists of a circular nozzle through which a solution jet impinges perpendicularly on the surface of the working electrode disk.…”

Section: Description Of the Movamentioning

confidence: 99%

Metal On‐Line Voltammetric Analyzer for On‐Site Monitoring of Iron Speciation in Acid Mine Drainage Waters: Development and Characterization

et al. 2009

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The development of a simple, low cost, portable metal on-line voltammetric analyzer (MOVA) for the iron analysis, as well as other species, in mining effluents is presented. It consists of a voltammetric cell based on an impinging jet flow configuration, a fluidic system controlled by gravity and electronics. Laboratory tests were performed to optimize the system as well as the analytical conditions for Fe speciation measurements. MOVA was then tested in the laboratory, in samples of both mining effluents. The results showed that iron in both mining effluents, as well as copper and arsenic, can be measured in oxygenated samples.

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Electrochemical detection in liquid flow analytical techniques: Characterization and classification (IUPAC Technical Report)

Cited by 69 publications

References 45 publications

Performance evaluation criteria for preparation and measurement of macro- and microfabricated ion-selective electrodes (IUPAC Technical Report)

Performance evaluation criteria for preparation and measurement of macro- and microfabricated ion-selective electrodes (IUPAC Technical Report)

Construction and Evaluation of a Gold Tubular Electrode for Flow Analysis: Application to Speciation of Antimony in Water Samples

Metal On‐Line Voltammetric Analyzer for On‐Site Monitoring of Iron Speciation in Acid Mine Drainage Waters: Development and Characterization

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