Fast two-dimensional fluorescence correlation spectroscopy technique for tea quality detection.

  title={Fast two-dimensional fluorescence correlation spectroscopy technique for tea quality detection.},
  author={Yongjiang Dong and H. Lu and Zhengdong Yong and Chunsheng Yan and Sailing He},
  journal={Applied optics},
  volume={54 23},
A fast two-dimensional fluorescence correlation spectroscopy technique based on light emitting diodes is developed, which uses light intensity and excitation wavelength as quickly changeable and easily controllable external perturbations. A compact and automatic system is set up to detect tea quality. A partial least square regression method is used to create predictive models for tea grades. Compared to the traditional fluorescence spectroscopy method, this convenient two-dimensional… 

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