Related Experiment Video
Updated: Jun 6, 2026

High-definition Fourier Transform Infrared (FT-IR) Spectroscopic Imaging of Human Tissue Sections towards Improving Pathology
Published on: January 21, 2015
[Identification of musk by Fourier transform infrared spectroscopy]
Jian Zhou1, Cheng Jin, Yun Luo
1China Military Institute of Chinese Materia Medica, 302 Military Hospital of China, Beijing.
Abstract:
Standard nature musk and false nature musk were identified by Fourier transform infrared spectroscopy (FTIR) combined with derivative spectra in the present article. The main characteristic absorption peaks of musk represented the key components such as macrocyclic ketone (2923, 2851 cm(-1)), polypeptides (1655, 1546 cm(-1)) and steroids (1400, 1038 cm(-1)) respectively. Ensuing from the researches artificial musk and natural musk resemble the exemplar of market nature musk. Particularly, the infrared spectra of samples of natural musk and artificial musk are more similar and hard to be distinguished. In virtue of derivative spectra analysis, the resolution of spectra is advanced; several kinds of standard musk have been differentiated directly and effectively. This method was fast, sensitive, direct and nondestructive, and could be used to identify the source of rare materia medica and distinguish the counterfeits of musk successfully.
Related Concept Videos
IR Frequency Region: Fingerprint Region
The...
Infrared (IR) Spectroscopy: Overview
Different compounds display unique properties due to their...
IR Spectroscopy: Molecular Vibration Overview
Stretching vibrations are vibrational motions that occur along the bond line, changing the bond length or distance between two bonded atoms. They are further distinguished as symmetric or asymmetric. In symmetric stretching, the...
IR Frequency Region: X–H Stretching
IR Spectrometers
IR Spectrum
Transmittance is defined as the ratio of the radiant power passing through a sample to that from the radiation's source. Multiplying the transmittance by 100 gives the percent transmittance (%T), which varies between 100% (no absorption) and 0% (complete...

