Journal of Zhejiang University. Science. B
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J Zhejiang Univ Sci B · Aug 2005
Background correction in near-infrared spectra of plant extracts by orthogonal signal correction.
In near-infrared (NIR) analysis of plant extracts, excessive background often exists in near-infrared spectra. The detection of active constituents is difficult because of excessive background, and correction of this problem remains difficult. ⋯ A simulated dataset and a real NIR spectral dataset were used to test the efficiency of different background correction methods. The results showed that OSC is the only effective method for correcting excessive background.