Related Experiment Video
Updated: Jun 20, 2026
Analysis of Raw and Processed Cyperi Rhizoma Samples Using Liquid Chromatography-Tandem Mass Spectrometry in Rats with Primary Dysmenorrhea
Published on: December 23, 2022
[Raman spectroscopic analysis of cinnabar as a traditional Chinese medicine]
Qi Wang1, Kewu Zeng, Xinrui Zhou
1School of Public Health, Peking University, Beijing 100191, China.
Objective:
To develop a new quality control method for cinnabar, in order to ensure the safety application of cinnabar.
Method:
Three inorganic mercury compounds (HgS, HgO, and HgCl2) and cinnabar samples were analyzed by laser Raman spectroscopy. The cinnabar samples were identified by comparing the Raman band in the Raman spectrum with pure HgS.
Result:
Different Raman bands were observed among three inorganic mercury compounds. The Raman spectroscopic results indicated that cinnabar samples showed the same Raman band as pure HgS, consisting with the HgS contents by XRF analysis.
Conclusion:
The Raman spectroscopic method is simple, rapid, and reliable. It can be applied as an alternative quality control method for cinnabar.
Related Concept Videos
01:20Raman Spectroscopy: Overview
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and the...
01:26Raman Spectroscopy Instrumentation: Overview
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...