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- Process Analytical Technology (1) (entfernen)
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Quantitative Online NMR spectroscopy as a direct ratio method of analysis represents a perfect reference for calibration of further process analytical techniques, e.g., optical spectroscopic techniques. In this work we present a combined approach including Online NMR and Raman spectroscopy on a laboratory setup for development of suitable models for process monitoring. Therefore we investigated the absorption process of carbon dioxide in solutions of monoethanolamine, as well as the homogeneous catalyzed hydroformylation reaction of 1-dodecene taking place in an emulsion stabilized by a technical surfactant. The models for Raman spectroscopy were tested and approved during several days of operational studies of miniplant-scale setups for both mentioned applications.