Design of an FT-NIR spectrometer for online quality analysis of traditional Chinese medicine manufacturing process

Ren Zhu; Lan Wu; Shiming Wang; Linhua Ye; Zhihua Ding

doi:10.1117/12.757261

28 November 2007 Design of an FT-NIR spectrometer for online quality analysis of traditional Chinese medicine manufacturing process

Ren Zhu, Lan Wu, Shiming Wang, Linhua Ye, Zhihua Ding

Author Affiliations +

Proceedings Volume 6834, Optical Design and Testing III; 68343B (2007) https://doi.org/10.1117/12.757261
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

As a fast, non-destructive analysis method, Fourier transform (FT) near-infrared (NIR) spectroscopy is very suitable and effective for online quality analysis of traditional Chinese medicine (TCM) manufacturing process. In this thesis, the theoretics of FT-NIRS was analyzed and an FT-NIR spectrometer with 4 cm^-1 resolution in the 12500-5000 cm^-1 frequency range was designed. The spectrometer was based on a Michelson interferometer with Bromine tungsten lamp as the NIR light source and InGaAs detector to collect the interference signal. Each element was designed and chosen to provide maximum sensitivity in the NIR spectral region. A fiber-optic flow cell system was used to realize online analysis of traditional Chinese medicine. The performance of the spectrometer was evaluated and the feasibility of using FT-NIR spectrometer to get absorption spectra of traditional Chinese medicine was demonstrated.

Citation Download Citation

Ren Zhu, Lan Wu, Shiming Wang, Linhua Ye, and Zhihua Ding "Design of an FT-NIR spectrometer for online quality analysis of traditional Chinese medicine manufacturing process", Proc. SPIE 6834, Optical Design and Testing III, 68343B (28 November 2007); https://doi.org/10.1117/12.757261

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