Sensitive Photothermal Deflection Detector for Microbore Liquid Chromatography

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A photothermal deflection detector for microbore liquid chromatography is described. The detection limit of the system under isocratic flow conditions is shown to be 8 × 10−8 absorbance units. This corresponds to 500 fg of analyte (acid sulfonate rug dye) injected on the column. The detection system is shown to be amenable to gradient elution and open tubular chromatography.

Keywords: Absorption spectroscopy; Liquid chromatography; Photothermal spectroscopy

Document Type: Research Article


Affiliations: 1: Department of Chemistry, University of Georgia, Athens, Georgia 30602 2: Department of Chemistry, University of Georgia, Athens, Georgia 30602; present address: Department of Chemistry, University of Kansas, Lawrence, KS 66045

Publication date: February 1, 1986

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