Abstract

The infrared spectrometry contains multiple information of the sample, and it is easy to be applied to on-line measurement. To Chinese medicine, this technology can improve the standard of quality control and accelerate the modernization course. In this paper, we investigate the spectral characteristics of borneol, an effective ingredient in many Chinese medicines. The following results are achieved. In middle infrared (MIR) region, utilizing the linear relationship between absorption and concentration, the concentration of borneol with relative error within 4.30% in the strongest absorption region (2950-2970 cm(-1)) is measured; in near infrared (NIR) region, the predicted concentrations of borneol are calculated by using partial least squares (PLS) regression analysis, in which the wavelengths are selected by genetic algorithm (GA) from the absorption bands of borneol in NIR region. The predicted relative error of calibration model is less than 2%. This result shows that PLS regression analysis combining genetic algorithm is a good method to improve prediction and reduce data in NIR region.

© 2005 Chinese Optics Letters

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References

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  1. Z. H. Zheng, China Pharmaceuticals (in Chinese) 10, 4 (2001).
  2. S. Q. Sun and X. Y. Liang, Spectroscopy and Spectral Analysis 22, 226 (2002).
  3. M. J. Mcshane and G. L. Cote, Applied Spectroscopy 52, 878 (1998).
  4. H. W. Wang, Partial Least Squares Regression Method and Applications (in Chinese) (National Defence Industry Press, Beijing, 1999) pp.12-41.
  5. D. C. Chen, Work Manual for Chemical Contrast of China Medicine (China Medicine Science and Technology Press, Beijing 1000) pp.71-72.
  6. X. Y. Gu, Y. Wang, K. X. Xu, L. Li, and N. S. Ling, Spectroscopy and Spectral Analysis (in Chinese) 24, 155 (2004).
  7. H. Wang, Q. B. Li, Z. Y. Liu, and K. X. Xu, Chin. J. Anal. Chem. 30, 779 (2002).

2004 (1)

X. Y. Gu, Y. Wang, K. X. Xu, L. Li, and N. S. Ling, Spectroscopy and Spectral Analysis (in Chinese) 24, 155 (2004).

2002 (2)

H. Wang, Q. B. Li, Z. Y. Liu, and K. X. Xu, Chin. J. Anal. Chem. 30, 779 (2002).

S. Q. Sun and X. Y. Liang, Spectroscopy and Spectral Analysis 22, 226 (2002).

2001 (1)

Z. H. Zheng, China Pharmaceuticals (in Chinese) 10, 4 (2001).

1998 (1)

M. J. Mcshane and G. L. Cote, Applied Spectroscopy 52, 878 (1998).

Cote, G. L.

M. J. Mcshane and G. L. Cote, Applied Spectroscopy 52, 878 (1998).

Gu, X. Y.

X. Y. Gu, Y. Wang, K. X. Xu, L. Li, and N. S. Ling, Spectroscopy and Spectral Analysis (in Chinese) 24, 155 (2004).

Li, L.

X. Y. Gu, Y. Wang, K. X. Xu, L. Li, and N. S. Ling, Spectroscopy and Spectral Analysis (in Chinese) 24, 155 (2004).

Li, Q. B.

H. Wang, Q. B. Li, Z. Y. Liu, and K. X. Xu, Chin. J. Anal. Chem. 30, 779 (2002).

Liang, X. Y.

S. Q. Sun and X. Y. Liang, Spectroscopy and Spectral Analysis 22, 226 (2002).

Ling, N. S.

X. Y. Gu, Y. Wang, K. X. Xu, L. Li, and N. S. Ling, Spectroscopy and Spectral Analysis (in Chinese) 24, 155 (2004).

Liu, Z. Y.

H. Wang, Q. B. Li, Z. Y. Liu, and K. X. Xu, Chin. J. Anal. Chem. 30, 779 (2002).

Mcshane, M. J.

M. J. Mcshane and G. L. Cote, Applied Spectroscopy 52, 878 (1998).

Sun, S. Q.

S. Q. Sun and X. Y. Liang, Spectroscopy and Spectral Analysis 22, 226 (2002).

Wang, H.

H. Wang, Q. B. Li, Z. Y. Liu, and K. X. Xu, Chin. J. Anal. Chem. 30, 779 (2002).

Wang, Y.

X. Y. Gu, Y. Wang, K. X. Xu, L. Li, and N. S. Ling, Spectroscopy and Spectral Analysis (in Chinese) 24, 155 (2004).

Xu, K. X.

X. Y. Gu, Y. Wang, K. X. Xu, L. Li, and N. S. Ling, Spectroscopy and Spectral Analysis (in Chinese) 24, 155 (2004).

H. Wang, Q. B. Li, Z. Y. Liu, and K. X. Xu, Chin. J. Anal. Chem. 30, 779 (2002).

Zheng, Z. H.

Z. H. Zheng, China Pharmaceuticals (in Chinese) 10, 4 (2001).

Applied Spectroscopy (1)

M. J. Mcshane and G. L. Cote, Applied Spectroscopy 52, 878 (1998).

Chin. J. Anal. Chem. (1)

H. Wang, Q. B. Li, Z. Y. Liu, and K. X. Xu, Chin. J. Anal. Chem. 30, 779 (2002).

China Pharmaceuticals (in Chinese) (1)

Z. H. Zheng, China Pharmaceuticals (in Chinese) 10, 4 (2001).

Spectroscopy and Spectral Analysis (1)

S. Q. Sun and X. Y. Liang, Spectroscopy and Spectral Analysis 22, 226 (2002).

Spectroscopy and Spectral Analysis (in Chinese) (1)

X. Y. Gu, Y. Wang, K. X. Xu, L. Li, and N. S. Ling, Spectroscopy and Spectral Analysis (in Chinese) 24, 155 (2004).

Other (2)

H. W. Wang, Partial Least Squares Regression Method and Applications (in Chinese) (National Defence Industry Press, Beijing, 1999) pp.12-41.

D. C. Chen, Work Manual for Chemical Contrast of China Medicine (China Medicine Science and Technology Press, Beijing 1000) pp.71-72.

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