1. Detection by thin-layer chromatography of organophosphorus insecticides in acutely poisoned rats and chickens;Beck;Acta Pharmacol. Toxicol,1968
2. Identification of pesticides at nanogram level by extraction p-values;Beroza;Anal. Chem,1965
3. Temperature-programmed gas chromatography of twenty phosphorus containing insecticides on four different columns and its application to the analysis of milk and corn silage;Bowman;J. Assoc. Off. Agric. Chem,1967
4. Thin-layer chromatographic determination of several organophosphorus insecticides in soil;Cywinskasmoter;Roczn. Panst. Zakl. Hig,1972
5. Collaboration study of a method for multiple chlorinated pesticide residues in leafy and cole-type vegetables;Gaul;J. Assoc. Off. Agric. Chem,1966