This tutorial provides an overview of the possibilities, limitations and analytical conditions of modern analytical supercritical fluid chromatography (SFC) using columns packed with sub-2 μm particles. In particular, it gives a detailed overview of commercially available modern SFC instrumentation and the detectors that can be employed (UV, MS, ELSD, FID, etc.). Some advice on the choice of the stationary phase dimensions and chemistries, the nature of the mobile phase (choice of organic modifier and additives) and its flow rate as well as the backpressure and temperature are also provided. Finally, several groups of potentially problematic compounds, including lipophilic compounds, hydrophilic substances and basic drugs, are discussed in detail. All these families of analytes can be resolved with SFC but require specific analytical conditions.

Department of Analytical Chemistry Faculty of Pharmacy Charles University Heyrovského 1203 Hradec Králové 500 05 Czech Republic

School of Pharmaceutical Sciences University of Geneva University of Lausanne Boulevard d'Yvoy 20 Geneva 4 1211 Switzerland

University of Orléans Institute of Organic and Analytical Chemistry CNRS UMR 7311 Pôle de Chimie BP 6759 Orléans cedex 2 45067 France

Waters NV SA Connexion Business Park Brusselsesteenweg 500 Zellik B 1731 Belgium

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