Analysis of Olibanum and Myrrha by Differential Scanning Calorimetry and Fourier Transform InfraRed
10.3760/cma.j.cn115398-20200813-00112
- VernacularTitle:乳香、没药差示扫描量热法与傅里叶红外光谱法分析
- Author:
Jinzhi SHEN
1
;
Xunfu XU
;
Haibo LYU
;
Wei REN
Author Information
1. 厦门大学附属中山医院药学部，厦门 361004
- Keywords:
Calorimetry, differential scanning;
Spectroscopy, fourier transform infrared;
Traditional Chinese drug identification;
Olibanum (TCD);
Myrrha
- From:
International Journal of Traditional Chinese Medicine
2022;44(3):314-318
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To distinguish the differences between Olibanum and Myrrha by using modern analytical methods such as Differential Scanning Calorimeter (DSC) and Fourier Transform InfraRed (FT-IR). Methods:By collecting Olibanum and Myrrha in different growing areas and different processed prosecures, this paper to analizes the influence of temperature increase and its speed , as well as the particle size on the DSC experiment. The DSC method was used to perform a differential thermal map of Olibanum and Myrrha scanning and analysis; FT-IR was used to scan and analyze 20 batches of Olibanum and Myrrha. Results:TThe results of DSC analysis showed that the DSC experimental condition ranged between 30-600 ℃; the speed of temperature increase was 30 ℃/min; the particle size was 100 mesh. The DSC spectra of of Olibanum and Myrrha were significantly different. Only the processed products of frankincense had endothermic peak near 297 ℃, and there was no characteristic peak in this temperature range. Their exothermic peaks are close at 326 ℃, but their enthalpy values are quite different. The position of endothermic peak near 100 ℃ is close to the size of peak shape. FT-IR test showed that the absorption peaks of Olibanum and Myrrha at wave numbers 2 925, 1 710, 1 454, 1 371, 1 242, 1 029 cm -1 appeared, and the positions of strong peaks were also similar. The intensity of the characteristic peak of Myrrha wave number 1 029 cm -1 is greater than that of Olibanum. Conclusion:The DSC spectra of Olibanum and Myrrha are significantly different, and the difference between the two FT-IR spectra is small. Differential scanning Calorimetry is an effective, fast, and simple way to identify resinous Chinese medicinal materials, and is worthy of further popularization.
