Determination of Ultra-trace Mercury(II) by Flow-injection/ Anodic Stripping Voltammetry Using a Track-etched Microporous Membrane Electrode

Mizuguchi, Hitoshi; Numata, Kentaro; Monma, Chiaki; Iiyama, Masamitsu; Tachibana, Kazuhiro; Nishina, Tatsuo; Shida, Junichi

doi:10.2116/analsci.29.949

Cited by 12 publications

(8 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In an FIA-ASV method developed for ultra-trace determination, a track-etched microporous membrane working electrode was employed, which was prepared by the sputtering of gold onto both sides of Nucleopore membrane filters with the pore size 10 μm. 387 The deposition of analyte was carried out during the sample solution flowed through the membrane electrodes, and with 180 s deposition time the LOD was evaluated as 50 ng L −1 . The schematic diagram of the flow cell with membrane working and counter electrode is shown in Fig.…”

Section: Electrochemical Detectionsmentioning

confidence: 99%

Recent advances in flow injection analysis

Trojanowicz

Kołacińska

2016

Analyst

168

View full text Add to dashboard Cite

A dynamic development of methodologies of analytical flow injection measurements during four decades since their invention has reinforced the solid position of flow analysis in the arsenal of techniques and instrumentation of contemporary chemical analysis. With the number of published scientific papers exceeding 20,000, and advanced instrumentation available for environmental, food, and pharmaceutical analysis, flow analysis is well established as an extremely vital field of modern flow chemistry, which is developed simultaneously with methods of chemical synthesis carried out under flow conditions. This review work is based on almost 300 original papers published mostly in the last decade, with special emphasis put on presenting novel achievements from the most recent 2-3 years in order to indicate current development trends of this methodology. Besides the evolution of the design of whole measuring systems, and including especially new applications of various detections methods, several aspects of implications of progress in nanotechnology, and miniaturization of measuring systems for application in different field of modern chemical analysis are also discussed.

show abstract

Section: Electrochemical Detectionsmentioning

confidence: 99%

Recent advances in flow injection analysis

Trojanowicz

Kołacińska

2016

Analyst

168

View full text Add to dashboard Cite

show abstract

“…The developed flow-injection systems dealt only with the determination of inorganic analytes, and the reported limits of detections very seldom competed with those obtained via the use of spectroscopic detection. An LOD level of ng L −1 for the determination of Hg(II) in river water was reached in an FIA system, with the use of anodic stripping voltammetry (ASV) with gold or platinum working electrodes, wherein metals were sputtered onto microporous membranes [136]. Then, detection with square wave voltammetry (SWV) was employed in the determination of phosphate in an SIA system, in which a glassy carbon electrode, modified with silanized carbon nanotubes and Au nanoparticles, was used as the working electrode [137].…”

Section: Application Of Electrochemical Detectionmentioning

confidence: 99%

“…Although certain electroanalytical techniques find many common applications in routine laboratories for water analysis, such as potentiometry with membrane ion-selective electrodes (ISE) or voltammetry for trace metal analysis, the past decade did not bring too many examples of the application of those techniques in FIA systems for water analysis [136][137][138][139][140][141][142][143][144] (Table 4). The developed flow-injection systems dealt only with the determination of inorganic analytes, and the reported limits of detections very seldom competed with those obtained via the use of spectroscopic detection.…”

Section: Application Of Electrochemical Detectionmentioning

confidence: 99%

Flow-Injection Methods in Water Analysis—Recent Developments

Trojanowicz

Pyszynska

2022

Molecules

View full text Add to dashboard Cite

Widespread demand for the analysis and control of water quality and supply for human activity and ecosystem sustainability has necessitated the continuous improvement of water analysis methods in terms of their reliability, efficiency, and costs. To satisfy these requirements, flow-injection analysis using different detection methods has successfully been developed in recent decades. This review, based on about 100 original research papers, presents the achievements in this field over the past ten years. Various methodologies for establishing flow-injection measurements are reviewed, together with microfluidics and portable systems. The developed applications mostly concern not only the determination of inorganic analytes but also the speciation analysis of different elements, and the determination of several total indices of water quality. Examples of the determination of organic residues (e.g., pesticides, phenolic compounds, and surfactants) in natural surface waters, seawater, groundwater, and drinking water have also been identified. Usually, changes in the format of manual procedures for flow-injection determination results in the improvement of various operational parameters, such as the limits of detection, the sampling rate, or selectivity in different matrices.

show abstract

“…For example, Mizuguchi et al developed a flow-through electrode based on track-etched polycarbonate membrane coated with platinum 47 or gold. 48,49 In the present work, the applicability of a flow-through electroanalytical cell based on CNT for the detection of heavy metal, is demonstrated by detecting copper. In this research copper is utilized as a model system for heavy metals and its detection is environmentally important because it can be released in drinking water by the plumbing of the water system.…”

mentioning

confidence: 93%

“…A previous study demonstrated the suitability of CNT as electrode for the determination of metals by anodic stripping voltammetry (ASV) moreover, flow-through electrodes have been applied successfully in stripping voltammetry. For example, Mizuguchi et al developed a flow-through electrode based on track-etched polycarbonate membrane coated with platinum or gold. , …”

mentioning

confidence: 99%

Carbon Nanotube Based Flow-Through Electrochemical Cell for Electroanalysis

2016

View full text Add to dashboard Cite

A flow-through electrode made of a carbon nanotubes (CNT) film deposited on a polytetrafluoroethylene (PTFE) membrane was assembled and employed for the determination of low concentration of copper as a model system by linear sweep anodic stripping voltammetry (LSASV). CNT films with areal mass ranging from 0.12 to 0.72 mg cm were characterized by measurement of sheet resistance, water permeation flux and capacitance. Moreover, CNT with two different sizes and PTFE membrane with two different pore diameters (0.45 and 5.0 μm) were evaluated during the optimization of the electrode. Thick layers made of small CNT exhibited the lowest sheet resistance and the greatest analytical response, whereas thin layers of large CNT had the lowest capacitance and the highest permeation flux. Electrodes made of 0.12 mg cm of large CNT deposited on 5.0 μm PTFE enabled sufficiently high mass transfer and collection efficiency for detecting 64 ppt of Cu(II) within 5 min of deposition and 4.0 mL min flow rate. The analytical response was linear over 4 orders of magnitude (10 to 10 M) of Cu(II). The excellent performance of the flow-through CNT membrane integrated in a flow cell makes it an appealing approach not only for electroanalysis, but also for the electrochemical treatment of waters, such as the removal of low concentrations of heavy metals and organics.

show abstract

Determination of Ultra-trace Mercury(II) by Flow-injection/ Anodic Stripping Voltammetry Using a Track-etched Microporous Membrane Electrode

Cited by 12 publications

References 32 publications

Recent advances in flow injection analysis

Recent advances in flow injection analysis

Flow-Injection Methods in Water Analysis—Recent Developments

Carbon Nanotube Based Flow-Through Electrochemical Cell for Electroanalysis

Contact Info

Product

Resources

About