Solubility of Liquid in Liquid: Frequently two or more liquids are mixed together in the preparation of pharmaceutical products (e.g. aromatic waters, spirits, elixirs, lotions, sprays, and medicated oils). Liquid–liquid systems can be divided into two categories according to the […]
Solubility of solids in liquids: Factors influencing solubility- Particle size (surface area) of drug particles ↓Particle size → ↑ surface area→ ↑Solubility. Log S/So = 2ϒv/2.303RTr So is the solubility of large particles S is the solubility of fine particles […]
The rate of enzymatic reactions depends on: Substrate concentration Enzyme concentration Effect of Ph Effect of temp Time Activators: it refers to the one that activates the enzymatic reaction. So activators are directly proportional to rate enzymatic reactions Inhibitors:– these […]
Factor that affecting fluorescence :- 1. Nature of the molecule :- Molecules that have tendency to absorbed Electromagnetic radiation (uv,IR) can only exhibit fluroscence. Unsaturated molecules with pi(π) bond and good resonance that molecules exhibit fluroscence. Saturated molecules with sigma(σ) bond do […]