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6 matching references were found.
Lawrence, J.F., Gas chromatographic separation of herbicides of major interest in Canada, with electrolytic conductivity detection in the nitrogen and chlorine modes, J. Chromatogr., 1976, 121, 1, 85-87, https://doi.org/10.1016/S0021-9673(00)82303-1 . [all data]
Lawrence, J.F.; Iverson, F., Analysis of the diazinon metabolites G 27550 and GS 31144 by gas-liquid chromatography with nitrogen-specific detection after derivatization, J. Chromatogr., 1975, 103, 2, 341-347, https://doi.org/10.1016/S0021-9673(00)87225-8 . [all data]
Bailey, R.; LeBel, G.; Lawrence, J.F., Gas-Liquid Chromatography of Triazine Herbicides as Heptafluorobutyryl Derivatives and Some Applications to Analysis in Foods, J. Chromatogr., 1978, 161, 251-257, https://doi.org/10.1016/S0021-9673(01)85234-1 . [all data]
Lawrence, J.F., Evaluation and confirmation of an alkylation-gas-liquid chromatographic method for the determination of carbamate and urea herbicides in foods, J. Ass. Offic. Anal. Chem, 1976, 59, 5, 1061-1065. [all data]
Lawrence, J.F.; McLeod, H.A., Evaluation of electrolytic conductivity detection for gas-liquid chromatographic screening of some organonitrogen herbicides and fungicides in foods, J. Ass. Offic. Anal. Chem, 1977, 60, 4, 979-981. [all data]
Lawrence, J.F.; Laver, G.W., Analysis of some carbamate and urea herbicides in foods by gas-liquid chromatography after alkylation, J. Agric. Food Chem., 1975, 23, 6, 1106-1109, https://doi.org/10.1021/jf60202a022 . [all data]