Chemometrics-assisted cyclodextrin-enhanced excitation–emission fluorescence spectroscopy for the simultaneous green determination of bisphenol A and nonylphenol in plastics

摘要: The aim of this work was to quantify two relevant priority chemicals, bisphenol A (BPA) and 4-nonylphenol (NP), coupling the sensitivity fluorescence in organized media selectivity multivariate calibration, measuring excitation–emission matrices an aqueous methyl-β-cyclodextrin solution. studied pollutants are most frequently found xenoestrogens environment, therefore public health concern.The data were successfully processed by applying unfolded partial least-squares coupled residual bilinearization (U-PLS/RBL), which provided required for overcoming severe spectral overlapping among analyte spectra also those interferents present real samples. rigorous International Union Pure Applied Chemistry (IUPAC)-consistent approach applied calculation limits detection. Values ranges 1–2 4–14 ng mL−1 obtained validation samples BPA NP, respectively. On other hand, low relative prediction errors between 3% 8% achieved. proposed method determination NP different plastics. In positive samples, after easy treatment with a small volume ethanol at 35 °C, concentrations range from 26 199 g−1 BPA, 95 30,000 NP.