title: Determination of phenol, resorcinol and hydroquinone in air samples by synchronous fluorescence using partial least-squares (PLS).
abstract: The determination of phenolic compounds is of great importance owing to their high toxicity. Some of them are present in tobacco smoke and it is important for their monitoring in air of closed room. A simple, rapid and sensitive method was developed for simultaneous determination of hydroquinone, resorcinol and phenol in this kind of samples. Synchronous fluorescence technique was used and the data were processed by using the partial least-squares (PLS) chemometric algorithm. The concentrations for experimental calibration matrix were varied between 0.02 and 0.2 mg L(-1) for hydroquinone, between 0.05 and 0.6 mg L(-1) for resorcinol and between 0.05 and 0.4 mg L(-1) for phenol in accordance with the national legislation. The cross-validation method was used to select the number of factors. To check the accuracy of the proposed method a recovery study on real samples was carried out.
authors.affiliation: FIA Laboratory, Department of Chemistry, Universidad Nacional del Sur, Av. Alem 1253, Bahía Blanca, Argentina.
authors.forename: Marcelo F
authors.initials: MF
authors.lastname: Pistonesi
authors.forename: María Susana
authors.initials: MS
authors.lastname: Di Nezio
authors.forename: María Eugenia
authors.initials: ME
authors.lastname: Centurión
authors.forename: Miriam E
authors.initials: ME
authors.lastname: Palomeque
authors.forename: Adriana G
authors.initials: AG
authors.lastname: Lista
authors.forename: Beatriz S
authors.initials: BS
authors.lastname: Fernández Band