Cortes, H J On-line coupling of supercritical fluid extraction with multidimensional microcolumn liquid chromatography/gas chromatography. [electronic resource] - Analytical chemistry Dec 1991 - 2719-24 p. digital Publication Type: Journal Article ISSN: 0003-2700 Standard No.: 10.1021/ac00023a011 doi Subjects--Topical Terms: Chlorpyrifos--analysisChromatography, Gas--methodsChromatography, Liquid--methodsPoaceae--chemistry