loading page

Proton NMR based method for the quantification of epoxidized methyl oleate
  • +3
  • Avneet Kaur,
  • Neha Bhardwaj,
  • Amanpreet Kaur,
  • Tejo Prakash Nagaraja,
  • Amjad ALI,
  • Ranjana Prakash
Avneet Kaur
Thapar Institute of Engineering and Technology
Author Profile
Neha Bhardwaj
Thapar Institute of Engineering and Technology
Author Profile
Amanpreet Kaur
Thapar Institute of Engineering and Technology
Author Profile
Tejo Prakash Nagaraja
Thapar Institute of Engineering and Technology
Author Profile
Amjad ALI
Thapar Institute of Engineering and Technology
Author Profile
Ranjana Prakash
Thapar Institute of Engineering and Technology
Author Profile

Abstract

Epoxidized methyl esters (EMO) with their high oxirane ring reactivity, acts as a raw material in the synthesis of various industrial chemicals including polymers, stabilizers, plasticizers, glycols, polyols, carbonyl compounds, biolubricants etc. EMO has been generally quantified by the gas chromatography (GC) and high performance liquid chromatography (HPLC) techniques. Taking into the account of the limitations of these techniques, two qHNMR based equations have been proposed for the quantification of EMO in the mixture of EMO and methyl esters (MO). The validity of the proposed method was determined using standard mixtures of MO and EMO having different molar concentrations. The developed equations have been applied on the samples of EMO prepared from oleic acid in two step process viz., esterification followed by epoxidation. The qHNMR based EMO quantification showed acceptable agreement with the results obtained from HPLC analysis.

Peer review status:UNDER REVIEW

30 Aug 2020Submitted to Journal of the American Oil Chemists' Society
31 Aug 2020Assigned to Editor
31 Aug 2020Submission Checks Completed
14 Sep 2020Reviewer(s) Assigned