Kinetics of drug decomposition. Part 38. Hydrolysis and autoxidation of sodium phenylbutazone and aminophenazone in binary kinetic system.
The kinetics of hydrolysis and autoxidation of sodium phenylbutazone (PhB-Na) and aminophenazone (APh) was studied in ammonia-acetate, Carmody and Welford buffers at different buffer concentration, pH, ionic strengths and temperatures. The reaction in N2 atmosphere and under a constant O2 pressure, carried out in calibrated ampoules, followed the first order reaction kinetics. The assay of PhB-Na and APh in the presence of their degradation produces was carried out spectrophotometrically in the degraded solutions.
Kinetics of drug decomposition. Part 38. Hydrolysis and autoxidation of sodium phenylbutazone and aminophenazone in binary kinetic system. The kinetics of hydrolysis and autoxidation of sodium phenylbutazone (PhB-Na) and aminophenazone (APh) was studied in ammonia-acetate, Carmody and Welford buffers at different buffer concentration, pH, ionic strengths and temperatures. The reaction in N2 atmosphere and under a constant O2 pressure, carried out in calibrated ampoules, followed the first order reaction kinetics. The assay of PhB-Na and APh in the presence of their degradation produces was carried out spectrophotometrically in the degraded solutions.