Quantitative Analysis of Clove Oil by NMR Spectrometry | Zendy

Chiang HungCheh | Zendy; Wang PeiLein | Zendy; Huang KehFeng | Zendy

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Quantitative Analysis of Clove Oil by NMR Spectrometry

Author(s) -

Chiang HungCheh,

Wang PeiLein,

Huang KehFeng

Publication year - 1983

Publication title -

journal of the chinese chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.329

H-Index - 45

eISSN - 2192-6549

pISSN - 0009-4536

DOI - 10.1002/jccs.198300016

Subject(s) - chemistry , acetophenone , carbon 13 nmr , nuclear magnetic resonance spectroscopy , proton nmr , eugenol , chloroform , mass spectrometry , analytical chemistry (journal) , reagent , nmr spectra database , carbon 13 nmr satellite , chromatography , fluorine 19 nmr , organic chemistry , spectral line , physics , astronomy , catalysis

A procedure utilizing NMR spectrometry in the quantitative analysis of clove oil is described. The 1 H‐NMR spectrum is determined with acetophenone as internal standard, the 13 C‐NMR spectrum is determined with chloroform as internal standard and 0.1 M Cr(acac) 3 as relaxation reagent. The contents of eugenol are compared to the results obtained from G.C. (90.8%, s.d. 0.7%) and from chemical method (89.6% s.d. 1.2%). The result obtained from 1 H‐NMR method is 90.4% (s.d. 0.3%) and from 13 C‐NMR method is 90.5% (s.d. 0.7%). The time required for the 1 H‐NMR method is about 20 mins and for the 13 C‐NMR method is about 2‐3 hours . Apparently the 1 H‐NMR method proves to be more simple, rapid and accurate.

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