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Reference type: Journal
Authors: Valero-Navarro A, Damiani PC, Fernández-Sánchez JF, Segura-Carretero A, Fernández-Gutiérrez A
Article Title: Chemometric-assisted MIP-optosensing system for the simultaneous determination of monoamine naphthalenes in drinking waters.
Publication date: 2009
Journal: Talanta
Volume: 78
Issue: (1)
Page numbers: 57-65.
DOI: 10.1016/j.talanta.2008.10.045
Alternative URL: http://www.sciencedirect.com/science/article/B6THP-4TVTJG8-2/2/8949f724b2d182cb2f988a23d036afdc

Abstract: In the present work a chemometric-assisted molecularly imprinted polymer (MIP)-fluorescence optosensing system has been developed for determining monoamines naphthalene compounds in drinking waters. The use of chemometrics for processing flow injection analysis with MIP fluorescence optosensor data allowed the simultaneous determination of the principal monoamine naphthalene compounds 1-naphthylamine (1-NA) and 2-naphthylamine (2-NA) even in presence of potential interferent 1-naphthalenemethylamine (1-NMA). Classical chemometrics tools such as partial least-squares (PLS-1), as well as second-order algorithms like multiway PLS (N-PLS) and unfolded PLS (U-PLS), were successfully applied, assisting fluorescence emission spectra at a fixed excitation wavelength or excitation-emission fluorescence matrices (EEM), respectively, when interferents are considered in the calibration set. The combinations of both N-PLS and U-PLS with residual bilinearization (RBL), achieving the second-order advantage, were satisfactory applied for the simultaneous determination of the main monoamine naphthalene compounds in drinking water, in the presence of a potential interferent without sample pretreatment, even when the later is not modeled in calibration set. Predictive ability, accuracy, figures of merit, as well as advantages and disadvantages of the different strategies were discussed
Template and target information: monoamine naphthalene compounds, 1-naphthylamine, 1-NA, 2-naphthylamine, 2-NA
Author keywords: molecularly imprinted polymers (MIPs), Optosensors, Chemometric multivariate calibration, Monoamine naphthalene compounds


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