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Literature References

The following references provide more detailed information on Xtricator and the methods inside.

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Førland, Geir M; Libnau, Fred O; Kvalheim, Olav M; Høiland, Harald (1996): Self-association of medium-chain alcohols in n-decane solutions. Appl. Spec. 50, 1264-1272

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Grung,Bjørn; Kvalheim,Olav M (1995): Resolution of multicomponent profiles with partial selectivity. A comparison of direct methods. Chemom. Intell. Lab. Syst. 29, 75-87.

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Hämäläinen,Markku D; Liang,Yi-Zeng; Kvalheim,Olav M; Andersson,Roger (1993): Deconvolution in one-dimensional chromatography by heuristic evolving latent projections of whole profiles retention time shifted by Simplex optimization of cross-correlation between target peaks. Anal. Chim. Acta 271, 101-114.

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Keller,Hans R; Massart,D Luc; Liang,Yi-Zeng; Kvalheim,Olav M (1992a): A comparison of the heuristic evolving latent projections and evolving factor analysis methods for peak purity control in liquid chromatography with diode array detection. Anal. Chim. Acta 267, 63-71.

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Keller,Hans R; Massart,D Luc; Liang,Yi-Zeng; Kvalheim,Olav M (1992b): Evolving factor analysis in the presence of heteroscedastic noise. Anal. Chim. Acta 263, 29-36.

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Kvalheim,Olav M; Brakstad,Frode; Liang,Yi-Zeng (1994): Preprocessing of analytical profiles in the presence of homoscedastic or heteroscedastic noise. Anal. Chem. 66, 43-51.

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Kvalheim,Olav M; Liang,Yi-Zeng (1992): Heuristic evolving latent projections: Resolving two-way multicomponent data. 1. Selectivity, latent-projective graph, datascope, local rank, and unique resolution. Anal. Chem. 64, 936-946.

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Liang,Yi-Zeng; Brereton,Richard G; Kvalheim,Olav M; Rahmani,Ali (1993): Use of chemometric factor analysis for chromatographic integration; Application to diode-array high-performance liquid chromatography of mixtures of chlorophyll a degradation products. The Analyst 118, 779-790.

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Liang,Yi-Zeng; Kvalheim,Olav M (1993): Unique resolution of hidden minor peaks in multidetection chromatography by first-order differentiation and orthogonal projections. Anal. Chim. Acta 276, 425-440.

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Liang,Yi-Zeng; Kvalheim,Olav M (1993): Heuristic evolving latent projections: Resolving hyphenated chromatographic profiles by component stripping. Chemom. Intell. Lab. Syst. 20, 115-125.

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Liang,Yi-Zeng; Kvalheim,Olav M; Höskuldsson,Agnar (1993): Determination of a multivariate detection limit and local chemical rank by designing a non-parametric test from the zero-component regions. J. Chemometr. 7, 277-290.

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Liang,Yi-Zeng; Kvalheim,Olav M; Keller,Hans R; Massart,D Luc; Kiechle,Peter; Erni,Fritz (1992): Heuristic evolving latent projections: Resolving two-way multicomponent data. 2. Detection and resolution of minor constituents. Anal. Chem. 64, 946-953.

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Liang,Yi-Zeng; Kvalheim,Olav M; Manne,Rolf (1993): White, grey and black multicomponent systems - A classification of mixture problems and methods for their quantitative analysis. Chemom. Intell. Lab. Syst. 18, 235-250.

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Liang,Yi-Zeng; Kvalheim,Olav M; Rahmani,Ali; Brereton,Richard G (1993): Resolution of strongly overlapping two-way multicomponent data by means of heuristic evolving latent projections. J. Chemometr. 7, 15-43.

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Liang,Yi-Zeng; Kvalheim,Olav M; Rahmani,Ali; Brereton,Richard G (1993): A two-way procedure for background correction of chromatographic/spectroscopic data by congruence analysis and least-squares fit of the zero-component regions: Comparison with double-centering. Chemom. Intell. Lab. Syst. 18, 265-279.

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Libnau,Fred O; Christy,Alfred A; Kvalheim,Olav M (1994): Resolution of infrared-spectra and kinetic-analysis of mutarotation of d-glucose in water by sequential rank analysis. Vib. Spec. 7, 139-148.

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Libnau,Fred O; Kvalheim,Olav M; Christy,Alfred A; Toft,Jostein (1994): Spectra of water in the near- and mid-infrared region. Vib. Spec. 7, 243-254.

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Libnau,Fred O; Toft,Jostein; Christy,Alfred A; Kvalheim,Olav M (1994): Structure of liquid water determined from infrared temperature profiling and evolutionary curve resolution. J. Am. Chem. Soc. 116, 8311-8316

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Lorber,Avraham (1986): Error propagation and figures of merit for quantification by solving matrix equations. Anal. Chem. 58, 1167-1172.

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Maeder,Marcel (1987): Evolving factor analysis for the resolution of overlapping chromatographic peaks. Anal. Chem. 59, 527-530.

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Nortvedt, Ragnar; Brakstad, Frode; Kvalheim, Olav M; Lundstedt Torbjörn (1996). "Anvendelse av Kjemometri innen forskning og industri", ISBN 92-91294-01-1

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Savitzky,Abraham; Golay,Marcel JE (1964): Smoothing and differentiation of data by simplified least squares procedures. Anal. Chem. 36, 1627-1639.

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Toft,Jostein; Kvalheim,Olav M (1993): Eigenstructure tracking analysis for revealing noise pattern and local rank in instrumental profiles: Application to transmittance and absorbance IR spectroscopy. Chemom. Intell. Lab. Syst. 19, 65-73.

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Toft,Jostein; Kvalheim,Olav M (1994): Multi-array resolution parameter for multidetection chromatography. Performance of alternating regression, iterative target transformation factor analysis and heuristic evolving latent projections. Chemom. Intell. Lab. Syst. 25, 61-75.

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Toft,Jostein; Kvalheim,Olav M; Libnau,Fred O; Nodland,Egil (1994): Non-linear curve fitting of bilinear data using orthogonal projections for rank analysis. Applications to gas chromatography/infrared spectrometry and variable temperature infrared studies. Vib. Spec. 7, 125-137.

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