Determination of Polycyclic Aromatic Hydrocarbons in Water Based on Three Dimensional Fluorescence Spectroscopy Combined with Wavelet Compression and APTLD
WANG Yu-tian, LIU Ting-ting*, LIU Ling-fei, YANG Zhe, CUI Yao-yao
Measurement Technology and Instrument Key Lab of Hebei Provice，Yanshan University，Qinhuangdao 066004，China
Abstract：Based on the three-dimensional fluorescence spectroscopy combined with wavelet compression and APTLD for the detection of polycyclic aromatic hydrocarbons (PAHs) in water，the rapid determination of PAHs in water was achieved. The samples were prepared by using three kinds of PAHs，naphthalene (NAP)，fluorene (FLU) and acenaphthene (ANA). First，the three-dimensional fluorescence spectra of the samples were measured with FLS920 steady-state fluorescence spectrometer. The data were excited and emitted by calibration and de-scattering to obtain the real spectrum. In order to solve the redundant information problem of three- dimensional fluorescence spectral data，the experimental spectral data is compressed by wavelet transform，and the compression score and data recovery fraction can reach 92% and 95% respectively. APTLD was applied to analyze the compressed data and reflect the second-order advantage. The experimental results show that the method can still be used for rapid determination，and the recovery rate is more than 94% and the predicted root mean square error is less than 0.29 with seriously overlapped and intermittent fluorescence spectra of PAHs.
王玉田，刘婷婷，刘凌妃, 杨 哲，崔耀耀. 基于三维荧光光谱结合小波压缩与APTLD对水中多环芳烃测定[J]. 光谱学与光谱分析, 2018, 38(04): 1171-1177.
WANG Yu-tian, LIU Ting-ting, LIU Ling-fei, YANG Zhe, CUI Yao-yao. Determination of Polycyclic Aromatic Hydrocarbons in Water Based on Three Dimensional Fluorescence Spectroscopy Combined with Wavelet Compression and APTLD. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(04): 1171-1177.
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