title: The determination of paraquat using thin-layer chromatography.
abstract: A thin-layer chromatographic method for the detection and determination of Paraquat in biological materials is presented. Paraquat was concentrated efficiently with the ion-exchange resin Dowex 50W-4 using a batch operation. Of the 16 solvent systems used the best results were obtained on silica gel G plates with methanol : 6N hydrochloric acid (20 : 30) or methanol : 6N sulfuric acid (20 : 30); and on cellulose plates with methanol : 6N hydrochloric acid (35 : 15) or methanol : 6N sulfuric acid (40 : 10). Also described is a microplate method for the thin-layer chromatography of Paraquat.
mesh_terms: D000818:Animals; D002482:Cellulose; D002855:Chromatography, Thin Layer / Q000379:methods; D005243:Feces / Q000032:analysis*; D005750:Gastric Juice / Q000032:analysis*; D007474:Ion Exchange; D010269:Paraquat / Q000032:analysis* / Q000652:urine; D051381:Rats; D012822:Silicon Dioxide
chemical_list: D012822:Silicon Dioxide; D002482:Cellulose; D010269:Paraquat