title: Determination of total phenolic compounds in compost by infrared spectroscopy.
abstract: Middle and near infrared (MIR and NIR) were applied to determine the total phenolic compounds (TPC) content in compost samples based on models built by using partial least squares (PLS) regression. The multiplicative scatter correction, standard normal variate and first derivative were employed as spectra pretreatment, and the number of latent variable were optimized by leave-one-out cross-validation. The performance of PLS-ATR-MIR and PLS-DR-NIR models was evaluated according to root mean square error of cross validation and prediction (RMSECV and RMSEP), the coefficient of determination for prediction (Rpred(2)) and residual predictive deviation (RPD) being obtained for this latter values of 5.83 and 8.26 for MIR and NIR, respectively.
authors.affiliation: Department of Analytical Chemistry, University of Valencia, 50 Dr. Moliner Street, Research Building, 46100 Burjassot, Valencia, Spain.
authors.forename: M M
authors.initials: MM
authors.lastname: Cascant
authors.affiliation: Laboratory of Water and Environment, Department of Chemistry, Chouaïb Doukkali University, Faculty of Sciences El Jadida, Morocco.
authors.forename: M
authors.initials: M
authors.lastname: Sisouane
authors.affiliation: Laboratory of Water and Environment, Department of Chemistry, Chouaïb Doukkali University, Faculty of Sciences El Jadida, Morocco.
authors.forename: S
authors.initials: S
authors.lastname: Tahiri
authors.affiliation: Laboratory of Water and Environment, Department of Chemistry, Chouaïb Doukkali University, Faculty of Sciences El Jadida, Morocco.
authors.forename: M El
authors.initials: ME
authors.lastname: Krati
authors.affiliation: Department of Analytical Chemistry, University of Valencia, 50 Dr. Moliner Street, Research Building, 46100 Burjassot, Valencia, Spain.
authors.forename: M L
authors.initials: ML
authors.lastname: Cervera
authors.affiliation: Department of Analytical Chemistry, University of Valencia, 50 Dr. Moliner Street, Research Building, 46100 Burjassot, Valencia, Spain. Electronic address: salvador.garrigues@uv.es.
authors.forename: S
authors.initials: S
authors.lastname: Garrigues
authors.affiliation: Department of Analytical Chemistry, University of Valencia, 50 Dr. Moliner Street, Research Building, 46100 Burjassot, Valencia, Spain.
authors.forename: M
authors.initials: M
authors.lastname: de la Guardia
mesh_terms: D016018:Least-Squares Analysis; D010636:Phenols; D012987:Soil; D013055:Spectrophotometry, Infrared; D019265:Spectroscopy, Near-Infrared
chemical_list: D010636:Phenols; D012987:Soil
keywords: Compost; Mid-infrared spectroscopy; Near-infrared spectroscopy; Partial least square; Total phenolic compounds