Abstract
A horizontal diamond attenuated total reflection (ATR) element has been incorporated in a flow-through cell with low dead volume and used for on-line mid-IR detection in high-performance liquid chromatography. The chemical inertness of the ATR element permitted the use of a strongly acidic mobile phase in the isocratic separation. The hyphenation was used for the analysis of organic acids, sugars and alcohols in red wine. In the case of co-eluting analytes multivariate curve resolution–alternating least squares (MCR–ALS) was successfully employed for quantitative analysis.
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Financial support from the Austrian Science Foundation within the project 13686 is acknowledged.
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Edelmann, A., Diewok, J., Baena, J.R. et al. High-performance liquid chromatography with diamond ATR–FTIR detection for the determination of carbohydrates, alcohols and organic acids in red wine. Anal Bioanal Chem 376, 92–97 (2003). https://doi.org/10.1007/s00216-003-1879-0
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DOI: https://doi.org/10.1007/s00216-003-1879-0