Coha, F Combination of thin-layer chromatography and the ring-oven method for the semi-quantitative estimation of some herbicides. [electronic resource] - Journal of chromatography Mar 1969 - 304-7 p. digital Publication Type: Journal Article Standard No.: 10.1016/s0021-9673(01)96665-8 doi Subjects--Topical Terms: Benzoates--analysisCarbamates--analysisChromatography, Thin LayerHerbicides--analysisPyridinium Compounds--analysis