2.1.1 Materials
Oleic acid (C18H34O2), sodium hydroxide (NaOH), hydrogen peroxide (H2O2), and glacial acetic acid (CH3COOH) were purchased from Loba Chemie, INDIA. Formic acid (HCOOH) and deuterated chloroform (CDCl3) were purchased from Sigma-Aldrich, USA. HPLC grade hexane and isopropanol high purity solvents and sulfuric acid (H2SO4) were purchased from Spectrochem, INDIA.