Please use this identifier to cite or link to this item: https://hdl.handle.net/10216/103483
Author(s): Ana Henriques
Paulo Cruz
João M. Ferra
Jorge Martins
Fernão D. Magalhães
Luísa H. Carvalho
Title: Determination of melamine content in amino resins by near-infrared spectroscopy
Issue Date: 2013
Abstract: Melamine-urea-formaldehyde resin production has increased in the last years due to low formaldehyde emissions and improved moisture resistance when applied on wood-based panels. Melamine is a relatively high-cost raw material in the resin formulation and has a significant effect on wood-based panel properties. It is important for industry to implement efficient quality control methods to determine melamine content in resins. The main objective of this work was to develop chemometric techniques for off-line monitoring of melamine content using near-infrared spectroscopy. The use of interval partial least squares regression allowed identifying the most interesting spectral ranges for analysis (4,400-4,800 and 5,200-5,600 cm(-1)) and the best preprocessing methods to use in the determination of this property. When the appropriate spectral range and preprocessing methods are selected, it is possible to obtain calibration models with high correlation coefficients.
Subject: Agricultura, silvicultura e pescas
Agriculture, Forestry, and Fisheries
Scientific areas: Ciências agrárias::Agricultura, silvicultura e pescas
Agrarian Sciences::Agriculture, Forestry, and Fisheries
URI: https://repositorio-aberto.up.pt/handle/10216/103483
Related Information: info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e Tecnologia/Projectos de I&DT em Todos os Domínios Científicos/PTDC/EQU-EQU/111571/2009/ECOUF - Desenvolvimento de resinas ureia-formaldeído de nova geração com baixa emissão de formaldeído/ECOUF
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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