title: Retention time reproducibility in comprehensive two-dimensional gas chromatography using cryogenic modulation. II. An interlaboratory study.
abstract: An interlaboratory survey was conducted to determine the reproducibility of retention times in both the first (1D) and second dimension (2D) axes of the two-dimensional separation space, using the longitudinal cryogenic modulation comprehensive two-dimensional gas chromatographic approach. Intralaboratory reproducibility has been demonstrated in part 1 of this investigation [J. Chromatogr. A 968 (2002) 161]. Confidence in absolute retention times (hence component positions) in the two-dimensional separation space is critical to component identification. Comparing data from four independent laboratories, five independent gas chromatographs, five independent LMCS units, and numerous operators has determined that the LMCS cryogenic modulation approach provides reliable comprehensive two-dimensional GC results.
authors.affiliation: Australian Centre for Research on Separation Science, Department of Applied Chemistry, RMIT University, G.P.O. Box 2476V, Melbourne, Victoria 3001, Australia.
authors.forename: Robert
authors.initials: R
authors.lastname: Shellie
authors.forename: Philip
authors.initials: P
authors.lastname: Marriott
authors.forename: Michelle
authors.initials: M
authors.lastname: Leus
authors.forename: Jean-Pierre
authors.initials: JP
authors.lastname: Dufour
authors.forename: Luigi
authors.initials: L
authors.lastname: Mondello
authors.forename: Giovanni
authors.initials: G
authors.lastname: Dugo
authors.forename: Kefu
authors.initials: K
authors.lastname: Sund
authors.forename: Bill
authors.initials: B
authors.lastname: Winniford
authors.forename: James
authors.initials: J
authors.lastname: Griffith
authors.forename: Jim
authors.initials: J
authors.lastname: Luong
mesh_terms: D002849:Chromatography, Gas / Q000379:methods*; D015203:Reproducibility of Results