Frei, R W Quantitative determination of azinphosmethyl (guthion) in blueberries by thin-layer chromatography and in situ fluorescence spectroscopy. [electronic resource] - International journal of environmental analytical chemistry Nov 1971 - 141-6 p. digital Publication Type: Journal Article ISSN: 0306-7319 Standard No.: 10.1080/03067317108073245 doi Subjects--Topical Terms: Chromatography, Thin LayerFruit--analysisInsecticides--analysisMethodsOrganothiophosphorus CompoundsSpectrometry, FluorescenceSulfates--analysis