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Aim To provide a potent reference for the clinical application of these alkaloids.Method The enthalpy of dissolution for these alkaloids in normal saline are measured using a RD4962000Calvet Microcalorimeter at 36.5℃under atmospheric pressure.Results The differential enthalpy(Δ dif H m) and molar enthalpy(Δ sol H m) were determined for these alkaloids in normal saline.Conclusion On the basis of these experimental data and calculated results,the kinetic equation,half-life,Δ sol H m,Δ sol G m andΔ sol S m of the dissolution process were also obtained.
Aim To provide a potent reference for the clinical application of these alkaloids. Method The enthalpy of dissolution for these alkaloids in normal saline are measured using a RD4962000 Calibrator Microcalorimeter at 36.5 ° C under atmospheric pressure. Results The differential enthalpy (Δ dif Hm) and molar enthalpy (Δ sol H m) were determined for these alkaloids in normal saline. Conlusion based on these experimental data and calculated results, the kinetic equation, half-life, Δ sol H m, Δ sol G m and Δ sol S m of the dissolution process were also obtained.