Further studies of H2/N2O/N2 and CH4/N2O/N2 flames showed that their laminar flame speeds and extinction strain rates are also sensitive to the nitrogen elementary kinetics.
Its chemical composition, determined by acidimetric titration and elementary analysis of nitrogen, is 0% dextran, 70% carboxymethyl and 30% benzylamide.
After purification by ultrafiltration (purity >98%) and lyophilisation, the chemical composition or degree of substitution (ds) of NaPaC was determined by acidimetric titration and elementary analysis of nitrogen.
Simulated results from a detailed elementary reaction mechanism for nitrogen-containing species in flames consisting of hydrogen, C1 or C2 fuels are presented, and compared with bulk experimental measurements of nitrogen-containing species in a variety of combustion systems including flow reactors, perfectly stirred reactors, and low pressure laminar flames.
The fungal extract subjected to elemental analysis instruments to determine hydrogen, carbon, nitrogen, and sulfur ratio (Elemental analysis CHNS elementary, Vario EL III, Germany).
Leaves and litter horizons were incubated in micro-lysimeters, leached, and characterised by different analytical approaches, from elementary analyses (dissolved organic carbon, CO2 production, nitrogen forms, UV absorptivity) to solid state NMR spectroscopy.
Oven-dried shoot samples were ground using a ball mill (Mixer Mill MM 200, Retsch, Haan, Germany) and analyzed for total carbon (Ctot) and nitrogen (Ntot) concentration using an elementary analyzer LECO-CN20000, LECO Corp., Saint Joseph, MI, USA).
For example, in the elementary mode resulting in the highest yield of fixed nitrogen on polyglucose, the cyanobacteria guild uses two strategies, maximizing production of free NH3 and cyanophycin and co-producing acetate, formate, and ethanol.
Leaf samples were crushed to powder with a ball mill (MM 200, Fisher Bioblock Scientific, France), then nitrogen content (Nm, %) was measured with an elementary analyser Eager 300 CHONS (FlashEA 1112, ThermoElectron Corporation, Waltham, MA, USA).
For elementary flux mode analysis, external compounds were substrates (sources of carbon, nitrogen, sulphur, oxygen) and products (enzyme, biomass, carbon dioxide, gluconate, oxalate, citrate).
Besides that, the textural and surface properties, skeletal density, particle morphology and the purity of nanopowders were determined by nitrogen physisorption, helium pycnometry, mercury porosimetry, XPS, FESEM and the organic elementary analysis.
