Chinese Optics Letters, Volume. 7, Issue 11, 1058(2009)

Identification of tartrazine and sunset yellow by fluorescence spectroscopy combined with radial basis function neural network

Jun Wang, Guoqing Chen, Tuo Zhu, Shumei Gao, Bailin Wei, and Linna Bi
Author Affiliations
  • School of Science, Jiangnan University, Wuxi 214122, China
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    The fluorescence spectra of synthetic food dyes of sunset yellow and tartrazine are analyzed. The fluorescence peak wavelengths of sunset yellow and tartrazine are 576 and 569 nm, respectively, while the fluorescence spectra widths are 480–750 and 500–750 nm induced by ultraviolet light between 310–400 nm. The fluorescence spectra of sunset yellow overlap heavily with those of tartrazine, so it is difficult to distinguish them. Based on the principle of radial basis function neural network, a neural network is obtained from the training of the 14 groups of experimental data. The results show that the species of sunset yellow and tartrazine could be recognized accurately. This method has potential applications in other synthetic food dyes detection and food safety inspection.

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    Jun Wang, Guoqing Chen, Tuo Zhu, Shumei Gao, Bailin Wei, Linna Bi, "Identification of tartrazine and sunset yellow by fluorescence spectroscopy combined with radial basis function neural network," Chin. Opt. Lett. 7, 1058 (2009)

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    Paper Information

    Received: Jan. 14, 2009

    Accepted: --

    Published Online: Nov. 11, 2009

    The Author Email:

    DOI:10.3788/COL20090711.1058

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