ArticleAnalytical chemistry2021
Leakless, Bipolar Reference Electrodes: Fabrication, Performance, and Miniaturization.
Article in Analytical chemistry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 40 citations in OpenAlex.
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- Precise Electrochemical Sizing of Individual Electro-Inactive Particles.Journal of visualized experiments : JoVE · 2023Article
- Triple-Barrel Ultramicroelectrodes for Multipurpose, Submilliliter Electroanalysis.Analytical chemistry · 2023Article
- On the mechanism of the bipolar reference electrode.The Analyst · 2023Article
- Article
- Recent progress in the development of improved reference electrodes for electrochemistry.Analytical sciences : the international journal of the Japan Society for Analytical Chemistry · 2022Review
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
Abstract
Reference electrodes must maintain a well-defined potential for long periods of time to be useful. The silver/silver chloride (Ag/AgCl) reference electrode is arguably the most widely used reference electrode, but it leaks silver and chloride ions into the sample solution through the porous frit over time. Further, the porous frit makes miniaturization to the micro- and nanoscale challenging. Here, we present an alternative, where the traditional Ag/AgCl reference electrode porous frit is replaced by a conductive wire, preventing ion leakage and allowing miniaturization to the microscale. Charge balance is maintained through a closed bipolar electrochemical mechanism, where faradaic processes occur on each end of the sealed wire. Using the above design, we demonstrate the efficacy of the leakless, bipolar reference electrode (BPRE) and miniaturize it to the microscale (μ-leakless BPRE). Importantly, we demonstrate that leakless and μ-leakless BPREs behave the same as commercial reference electrodes during potentiometric measurements and leakless BPREs perform similarly during voltammetric measurements on ultramicroelectrodes. We demonstrate that the drift during voltammetry using a leakless BPRE on a macroelectrode is slightly more appreciable compared to the drift seen with a commercial reference electrode. We detail design principles for the use of leakless BPREs in nonaqueous solvents and in sealing other conductive materials (
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.