Method for rapid screening of chlorophenols using a reduced calibration set of UV spectra and multivariate calibration techniques

• Tipo: Artigo em Revista Científica Internacional
• Data: 1998

Autores

da Silva, JCGE (Autor) FCUP; Laquipai, MCPOM (Autor) Outra

Revista

Título: Analytical Letters

Vol. 31

Páginas: 2549-2563

ISSN: 0003-2719

Editora: Taylor & Francis

Indexação

ISI Web of Knowledge - 12 Citações

Scopus - 12 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Química

Outras Informações

ID Authenticus: P-001-8QM

DOI: 10.1080/00032719808005324

Abstract (EN): A method for the rapid screening of five chlorophenols in the ppm concentration range (2-chlorophenol, 2,4-dichlorophenol, 2,4,6-trichlorophenol, 4-chloro-m-cresol, and pentachlorophenol) is described. It is based on the use of first derivative UV spectrophotometry with a reduced calibration set constituted by eleven standard solutions, selected according to a four level fractional factorial experimental design, and in the use of multivariate calibration: techniques (partial least squares and artificial neural networks) as calibration models. This methodology allows the development of calibration models with good prediction ability for the rapid simultaneous analysis of the five chlorophenols.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 15