Nonaqueous electrochemical cell capable of rigorous exclusion of water and oxygen

Mills, Jerry L.; Nelson, Roger Raymond; Shore, Sheldon G.; Anderson, Larry B.

doi:10.1021/ac60296a015

Cited by 29 publications

(14 citation statements)

References 6 publications

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“…Reductive electrochemical analysis also benefits from oxygen removal. High background current and resultant base-line noise are produced by the reduction of residual oxygen present in solutions that are not deoxygenated prior to analysis (41)(42)(43)(44)(45)(46)(47)(48)(49)(50)(51)(52). Consequently, without sample deoxygenation, oxygen acts as a major source of interference in polarography, amperometry, and other forms of electrochemical analysis conducted in the reductive mode.…”

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confidence: 99%

Deoxygenation of solutions and its analytical applications

Rollie¹,

Patonay²,

Warner³

1987

Ind. Eng. Chem. Res.

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A representative survey of current methods of solution deoxygenation is presented. Some of the novel, nonconventional methods of degassing are also highlighted. The deoxygenation methodology is examined with special emphasis on luminescence spectroscopy, reductive electrochemical analysis, high-performance liquid chromatography, and liquid chromatography with reductive electrochemical detection. Each of these areas of analytical chemistry is examined with regard to (1) the adverse effects that are caused by the presence of dissolved oxygen in samples and solutions and (2) how the current deoxygenation methodology is applicable to each analytical technique.

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confidence: 99%

Deoxygenation of solutions and its analytical applications

Rollie¹,

Patonay²,

Warner³

1987

Ind. Eng. Chem. Res.

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“…It was degassed at the high-vacuum line with three freeze−pump−thaw cycles and condensed under high vacuum onto highly activated Al 2 O 3 and then into ampules containing supporting electrolyte. These ampules were connected to a high-vacuum electrochemistry cell, and the supporting electrolyte solution was transferred into the cell by tipping. The supporting electrolytes were n -Bu 4 NPF 6 (TBAHFP), prepared and purified according to a literature procedure, and sodium tetraphenylborate (Fluka, puriss.…”

Section: Methodsmentioning

confidence: 99%

Electrochemistry of Ruthenium Metallocenes. 1. Synthesis, NMR, and Anodic Electrochemical Behavior of Vinyl-Substituted Ruthenium Cyclophane Complexes

Gollas¹,

Speiser²,

Sieglen³

et al. 1996

Organometallics

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Ruthenium complexes of 4-ethenyl-and 4,12-diethenyl[2 2 ]paracyclophane have been synthesized and investigated by NMR spectroscopy as well as electroanalytical techniques. The structure of [(C 20 H 20 )Ru(II)(C 16 H 16 )](BF 4 ) 2 ‚(acetone) was determined by X-ray crystallography. Consistently, the results show that electron density is decreased in those ("disturbed") vinyl groups bound directly to ruthenium-complexed cyclophane decks. Electrochemical oxidation of the complexes depends on the presence or absence of undisturbed vinyl groups and results in the formation of redox-active films on the electrode. in the literature. 39 Both were used in 0.1 M concentration throughout. The working electrodes were Pt [3 mm diameter, Metrohm or Bioanalytical Systems (BAS)] and glassy carbon disks (3 mm diameter, BAS), polished with 0.05 µm alumina (BAS) prior to all experiments (electroactive area A ≈ 0.07 cm 2 ). The reference electrode was a Ag/Ag + dual-reference electrode system with a Haber-Luggin capillary as described. 40 All potentials are recalibrated to the ferrocene/ ferrocenium ion standard 25 in the respective solvent determined in separate experiments. A Pt wire served as auxiliary electrode. Data were collected on a BAS 100B/W electrochemical workstation.

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“…The electrochemical instrumentation, cells, and procedures for achieving measurements under rigorously aprotic conditions have been previously described. 33 All measurements were made at ambient laboratory temperature, 23 ± 1°. Potentials were measured against a silver wire/0.1 M Ag+ (THF) reference electrode, but are reported herein vs. the aqueous saturated calomel electrode and are not corrected for iR drop.…”

Section: Methodsmentioning

confidence: 99%