title: European Analytical Column No. 42.
authors.affiliation: IDAEA-CSIC, 1808034, Barcelona, Spain, roma.tauler@idaea.csic.es.
authors.forename: Romà
authors.initials: R
authors.lastname: Tauler
authors.forename: Federico
authors.initials: F
authors.lastname: Marini
authors.forename: Beata
authors.initials: B
authors.lastname: Walczak
authors.forename: Lutgarde
authors.initials: L
authors.lastname: Buydens
authors.forename: Richard G
authors.initials: RG
authors.lastname: Brereton
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Buchberger
authors.forename: Paul J
authors.initials: PJ
authors.lastname: Worsfold