Determination of Phenol Residues in Sewage by Multidimensional Approach Combined with Three-dimensional Fluorescence Spectrometry

Simultaneous determination of phenol, hydroquinone and catechol in sewage was established by three-dimensional fluorescence spectrometry with scanning in the excitation wavelength range of 205450nm and in the emission wavelength range of 215-320nm.The analysis of second-order fluorescence matrices was performed using the self-weighted alternating trilinear decomposition(S WALTD).The average recoveries were 95.84±0.41% for phenol, 102.31±0.44% for hydvoquinone and 100.27± 0.43%for catechol.The method was simple, rapid, and effective for quantitative analysis of the phenols in sewage without complex pretreatment.It also showed that the three-way algorithm could distinguish the overlapping fluorescences spectra and allow the individual concentration of the analytes to be predicted even in the presence of uncalibrated interferences.