TY - JOUR AU - Thomas, Sharon, H AB - Abstract In-situ optical scanning of f luorescamine derivatives on thin layer silica gel plates provides a rapid method for the determination of multiple sulfonamides at levels below 0.1 ppm. Sample preparation is minimal. Homogenized liver or muscle is extracted with ethyl acetate and then back-extracted into 0.2M glycine buffer. After pH adjustment, the extract is washed with hexane and extracted with methylene chloride. The organic phase is evaporated to dryness and reconstituted in methanol. Pre-adsorbent layer silica gel plates are used for chromatography. The method has been applied to residues of sulfamethazine, sulfadimethoxine, sulfathiazole, sulfaquinoxaline, and sulfabromomethazine in cattle, swine, turkey, and duck tissues. This content is only available as a PDF. © Journal of the Association of Official Analytical Chemists This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model (https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model) TI - Quantitative Thin Layer Chromatographic Multi-Sulf onamide Screening Procedure JF - Journal of AOAC International DO - 10.1093/jaoac/66.4.881 DA - 1983-07-01 UR - https://www.deepdyve.com/lp/oxford-university-press/quantitative-thin-layer-chromatographic-multi-sulf-onamide-screening-y8fvc166Hz SP - 881 EP - 883 VL - 66 IS - 4 DP - DeepDyve ER -