- 作者: 姜宏哲; 王佩蓮; 黃克峰
- 作者服務機構: Institute of Chemistry, National Taiwan Normal University, Taipei 117
- 中文摘要:
A.procedure utilizing NMR spectrometry in the quantitative analysis of clove oil is described. The 1H-NMR spectrum is determined with acetophenone as internal standard, the 13C-NMR spectrum is determined with chloroform as internal standard and 0.1M 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 1H-NMR method is 90.4% (s.d. 0.3%) and from 13C-NMR method is 90.5% (s.d. 0.7%). The time required for the 1H-NMR method is about 20mins and for the 13C-NMR method is about 2-3hours. Apparently the 1H-NMR method proves to be more simple, rapid and accurate. - 英文摘要: --
- 中文關鍵字: NMR and GC analysis of clove oil; eugenol.
- 英文關鍵字: NMR and GC analysis of clove oil; eugenol.