B romide (Br) causes positive interference with all clinical laboratory methods for the detenmination of serum Cl (1 .2). Interference with Cl measurement is much greater with ion-selective electrode (ISE) technology (1 .3) than with coubometry (1 -4). We recently described a patient ingesting therapeutic amounts of pynidostigmine Br (MestInon1 , containing 1 8.4 mg of Br [30.6%j per 60-mg tabl...

TYPES OF MELTS From the practical viewpoint, melts may be classified according to melting points which may limit the available techniques. The lowest melting, with working temperatures up to 250°, are typified by the LiNO3—NaNO3— KNO3 eutectic, NaNO3—KNO3 eutectic, LiClO4, and ammonium formate. With these solvents it is possible to use the dropping mercury electrode, or hanging mercury drop ele...

The electrochemical behavior of quinoline in anhydrous liquid ammonia was investigated by cyclic voltammetry and controlled potential coulometry. In the absence of added alkylating agent, quinoline is reduced in two steps to yield the radical anion and dianion both of which undergo further chemical reaction. The radical anion species dimerizes to form the dimeric dianion which is stable in the ...

Nanowires with sharp tips, i.e. small radius of curvature, are expected to be ideal field emitters, because an externally applied electric field E can be amplified up to several orders of magnitude [1]. The probability of electron tunneling through the surface potential is enhanced, resulting in a field emission (FE) current. Since no elevated temperatures are required, such nanostructures coul...

INTRODUCTION Electrode materials in high area form are of common use in electrochemical energy storage and energy generation applications as in batteries and fuel cells. Attempts to extract information regarding intrinsic properties of such highly divided materials in environments that resemble actual devices are often compromised by the presence of binders and/or additives, including complicat...

The electrochemical behavior of nitrobenzene and nitrosobenzene in anhydrous liquid ammonia was investigated by cyclic voltammetry and controlled potential coulometry. In the absence of added protonating agents, nitrosobenzene and nitrobenzene are both reversibly reduced in two one-electron transfer steps to yield the stable radical anion and stable dianion species. In the presence of the weak ...

The electroreduction of 9,lO-diphenylanthracene (DPA) in dimethylformamide solutions was studied by polarography, cyclic voltammetry, chronopotentiometry, and coulometry. The results generally confirmed the mechanism proposed for the reduction of aromatic hydrocarbons based on polarographic experiments. Coulometric experiments demonstrated that with sufficient care in solution preparation 1 Far...

Hydrogen in metals has possible applications in various energy storage devices. For the palladium-deuterium system, excess power production and other anomalous effects have been reported. This study focused on hydrogen and deuterium insertion into palladium and deuterium insertion into various palladium-boron alloys. The condition of the metal surface is a major factor in the insertion of hydro...

In laboratory medicine, meaningful measurements are essential for the diagnosis, risk assessment, treatment, and follow-up of patients; therefore, methods applied in diagnostic measurements must be accurate, precise, specific, and comparable among laboratories (1 ). A given analytical measurement has only one true result, and the reliability of a measurement lies both in the result obtained and...

Here we report the synthesis and characterization of functional models of hydrogenases for electrocatalytic prouduction of hydrogen from weak acids. The complexes employ iron in bio-inspired coordination environments yielding catalysts that are fast and require very little electrochemical overpotential to support turnover. Progress Report Electrocatalysis by an Asymmetrically Disubstituted Diir...