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Studies the kinetics of carbon monoxide binding and dissociation to lacunar iron(II) cyclidene complexes. Dependence of dynamic parameters on the structural features of the compounds; Effects of ligand substituents on the binding and dissociative rate constants; Observed steric effects.

Presents information pertaining to the working electrode on the response time of amperometric gas sensors. Comparison of the experimental behavior to the values predicted on the basis of Fick's second law of diffusion and to the values expected on the basis of the electrical properties of the sensor; How the behavior of the sensor was explained; Contents of most electrochemical gas sensors.

Examines the reactivity of superoxide toward iron(II) complexes with pentadentate and hexadentate ligands derived from cyclononane. Use of a range of electrochemical, spectroelectrochemical and spectroscopic techniques; Indication of repetitive cyclic voltammograms of both complexes; Initiation of the electropolymerization.

Investigates the autoxidation reactions of the cobalt(II) cyclidenes in nonaqueous media. Kinetics of the autoxidation reaction; Isotopic substitution of the ligand; Proposed mechanism.

This study examines the hydrogen peroxide concentrations measured near four models of hydrogen peroxide sterilizers, from two manufacturers, monitored in seven hospitals across the U.S. and Canada over several years. The results showed that the majority of sterilizers do not emit hazardous levels of hydrogen peroxide and none of them exceeded the OSHA PEL of 1 ppm (8-hr time-weighted average (TWA)), however several of the sterilizers exceeded 3 ppm, the short-term exposure limit in two states: Washington and Hawaii. One hospital found brief concentrations of 25–40 ppm hydrogen peroxide from 4 hydrogen peroxide sterilizers each time they opened the sterilizer at the end of its cycle. Although not exceeding the OSHA PEL, these exposures are of concern since this concentration is roughly half the NIOSH IDLH of 75 ppm, and operators in a busy hospital environment may receive these exposures multiple times a day. [ABSTRACT FROM PUBLISHER]