ABSTRACT
Carbon dioxide decomposition in a non-self-sustained discharge was studied by the methods of diode laser spectroscopy and mass-spectrometry. It was shown that the effective control of the mechanism of a plasmachemical reaction is possible by varying the parameter E/N. This allowed us to reduce the energy cost of dissociation CO(2) by more than on an order of magnitude as compared to the dissociation process in a self-sustained glow discharge.
Subject(s)
Carbon Dioxide/chemistry , Chemistry Techniques, Analytical/instrumentation , Lasers , Mass Spectrometry/instrumentation , Spectrophotometry/instrumentation , TemperatureABSTRACT
Eighteen compounds were identified by GC-MS of their trimethylsilyl derivatives in n-butanolic extract from the biomass of Botryllus schlosseri. Three of them, 5-oxoproline, 5-hydroxyhydantoin, and kinurenic acid, were found in marine invertebrates for the first time. In addition to cellulose, the biomass was also shown to contain complex water-soluble sulfated polysaccharides. These were extracted and fractionated, and sulfate content and monosaccharide composition were determined in the fractions; fucose, xylose, galactose, mannose, glucose, glucosamine, galactosamine, and uronic acids were found. Unlike several other tunicate species, Botryllus schlosseri does not seem to contain any simple galactan sulfate.
