Hexacarbons are used as solvents and are components of lacquers and glues. Exposure to the hexacarbons occurs in petroleum production and refining industries. Glues and lacquers are widely used in the shoe and cabinet-making industries (Herskowitz et al 1971; Cianchetti et al 1976). Initial reports of occupational exposure to hexacarbons centered on the sandaland shoe-making industries of Japan...

The aim of the study was to quantify the variability on biological indicators of exposure between men and women for three well known solvents: methyl ethyl ketone, 1-methoxy-2-propanol and 1,1,1-trichloroethane. Another purpose was to explore the effect of selected CYP2E1 polymorphisms on the toxicokinetic profile. Controlled human exposures were carried out in a 12 m³ exposure chamber for each...

The impact of reactivity ratios determined with the Nelder and Mead simplex method on the kinetic-model discrimination and the solvent-effect determination for the styrene/acrylonitrile monomer system was investigated. For the monomer system, the penultimate unit effect was inversely proportional to the polarity of the solvent: acetonitrile , N,N-dimethylformamide , methyl ethyl ketone , toluen...

An analytical technique was developed for the quantitation of volatile organic compounds (VOC) in three different forms of electronic cigarette (EC): solution, vapor, and aerosol. Through the application of the mass change tracking (MCT) approach, the consumed amount of the solution was measured to track the conversion of targets between the different phases. The concentration of aerosol plus v...

A molybdenum-iron cluster (Mo-Fe cluster) containing 6 Fe atoms per Mo was isolated by methyl ethyl ketone extraction of component I of nitrogenase from Azotobacter vinelandii. The cluster has no EPR signal in the g = 4 region but has an intense signal at g = 2.05 and 2.01. After the cluster was transferred from methyl ethyl ketone to N-methylformamide, the signal in the g = 2 region disappeare...