RT Journal Article T1 Fractionation of Plant Extracts by Supercritical Fluid Extraction and Direct Introduction in Capillary Gas Chromatography using a Programmable Temperature Vaporizer A1 Blanch, Gracia A1 Caja López, María Del Mar A1 Ruiz del Castillo, Maria Luisa A1 Santa-Maria, Guillermo A1 Herraiz, Marta AB A simple procedure to improve the sensitivity achievable in the analysis of supercritical fluid extracts of complex matrices is proposed. The method involves the offline coupling of supercritical fluid extraction and gas chromatography (GC) in such a way that the glass liner of a programmed temperature vaporizer is placed after the separation vessels of the extraction module. The subsequent chromatographic analysis is simply achieved by direct introduction of the glass liner into the GC. The proposed procedure is also adequate to perform the fractionation of supercritical fluid extracts into different groups of compounds, thus allowing the performance of highly selective extractions. SN 0021-9665 YR 1999 FD 1999 LK https://hdl.handle.net/20.500.14352/92813 UL https://hdl.handle.net/20.500.14352/92813 LA eng NO Blanch GP, Caja MM, Ruiz Del Castillo ML, Santa-Maria G, Herraiz M. Fractionation of Plant Extracts by Supercritical Fluid Extraction and Direct Introduction in Capillary Gas Chromatography using a Programmable Temperature Vaporizer. Journal of Chromatographic Science 1999;37:407–10. https://doi.org/10.1093/chrsci/37.10.407. NO Ministerio de Educación y Cultura (España) DS Docta Complutense RD 9 abr 2025