Three-Dimensional Fluorescence Spectroscopy Combined with Wavelet Compression and Alternate Penalty Quad Linear Decomposition for Environmental Analysis: Determination of Polycyclic Aromatic Hydrocarbons
WANG Shu-tao, LIU Ting-ting*, SHANG Feng-kai, CUI Yao-yao, YANG Zhe, WANG Yu-tian
Measurement Technology and Instrument Key Lab of Hebei Provice, Yanshan University, Qinhuangdao 066004, China
Abstract：The quantitative and quantitative analysis of trace polycyclic aromatic hydrocarbons (PAHs) was carried out based on three-dimensional fluorescence spectroscopy combined with alternating penalty four linear decomposition (APQLD). The experiment was carried out with acenaphthene (ANP) and naphthalene (ANA). First, in order to solve the redundant information of the three-dimensional fluorescence spectral data, the experimental spectral data was compressed by wavelet transform. The four-dimensional data were constructed by using the combination of excitation and emission spectra of PAHs in ethanol solvent and methanol solvent and ultrapure water respectively. The four-dimensional spectral data were analyzed by APQLD and compared with PAHs under three solvent conditions The respective recovery rate. The experimental results showed that the higher order data can be used to determine the concentration of PAHs more accurately under the three solvent conditions, and the recovery rate was higher. Compared with the second-order correction and other four-dimensional correction algorithms, APQLD can better reflect the superiority of the four-dimensional algorithm The recovery rate of ANA was 96.5%~103.3% and the predicted root mean square error was 0.04 μg·L-1. The recovery rate of NAP was 93.3%~110.0%, and the predicted root mean square error was 0.08 μg·L-1.
Key words：Four-dimensional spectral data; Alternating penalty four linear decomposition; Three-dimensional fluorescence spectra; Wavelet compression；Polycyclic aromatic hydrocarbons
王书涛，刘婷婷，高凤凯，崔耀耀，杨 哲，王玉田. 三维荧光光谱结合小波压缩与交替惩罚四线性分解算法测定多环芳烃[J]. 光谱学与光谱分析, 2018, 38(08): 2441-2450.
WANG Shu-tao, LIU Ting-ting, SHANG Feng-kai, CUI Yao-yao, YANG Zhe, WANG Yu-tian. Three-Dimensional Fluorescence Spectroscopy Combined with Wavelet Compression and Alternate Penalty Quad Linear Decomposition for Environmental Analysis: Determination of Polycyclic Aromatic Hydrocarbons. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(08): 2441-2450.
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