title: Use of reflectance infrared spectroscopy for monitoring the metal content of the estuarine sediments of the Nerbioi-Ibaizabal River (Metropolitan Bilbao, Bay of Biscay, Basque Country).
abstract: Multivariate partial least-squares (PLS) calibration models have been developed for the spatial and seasonal simultaneous monitoring of 14 trace elements (Al, As, Cd, Co, Cr, Cu, Fe, Mg, Mn, Ni, Pb, Sn, V, and Zn) in sediments from 117 samples taken in the estuary of the Nerbioi-Ibaizabal River. Models were based on the chemometric treatment of diffuse reflectance near-infrared (NIR) and attenuated total reflectance (ATR) mid infrared (MIR) spectra, obtained from samples previously lyophilized and sieved with a particle size lower than 63 microm. Vibrational spectra were scanned in both, NIR and MIR regions. Developed PLS models, based on the interaction between trace elements and organic mater provide good screening tools for the prediction of trace elements concentration in sediments.
authors.affiliation: Department of Analytical Chemistry, University of Valencia, 50 Dr. Moliner Street, 46100 Burjassot, Valencia, Spain.
authors.forename: Javier
authors.initials: J
authors.lastname: Moros
authors.forename: Silvia
authors.initials: S
authors.lastname: Fdez-Ortiz De Vallejuelo
authors.forename: Ainara
authors.initials: A
authors.lastname: Gredilla
authors.forename: Alberto
authors.initials: A
authors.lastname: De Diego
authors.forename: Juan Manuel
authors.initials: JM
authors.lastname: Madariaga
authors.forename: Salvador
authors.initials: S
authors.lastname: Garrigues
authors.forename: Miguel
authors.initials: M
authors.lastname: De La Guardia
mesh_terms: D019015:Geologic Sediments / Q000737:chemistry*; D006801:Humans; D008670:Metals / Q000032:analysis*; D045483:Rivers / Q000737:chemistry*; D013030:Spain; D013055:Spectrophotometry, Infrared / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D008670:Metals; D014874:Water Pollutants, Chemical