A specific gas chromatographic method for residues of organic nitrogen pesticides

Fate of carbofuran and its metabolites on strawberries in the environment

“…Extraction of the Strawberries and Leaves. The extraction procedure was based on the method of Cassil et al (1969) with the following modifications. Ten grams of berries or leaves was blended for 15 s in a Waring blender in 50 mL of 0.25 N hydrochloric acid.…”

Gas Chromatographic Measurement and Identification of Pesticide Residues with Electron Capture, Microcoulometric, and Electrical Conductivity Detectors

“…Cassil et al (11) In Pesticides Identification; Biros, F.; Advances in Chemistry; American Chemical Society: Washington, DC, 1971.…”

Gas chromatography

“…Reaction GC was used in the determination of NO and NOa by reduction to N2 at 300-500 °C on a suitable catalyst (e.g., Pt, Pd, or Cu/Cr) in a reducing atmosphere of CO (872). Organic nitrogen compounds may also be catalytically reduced to ammonia and measured in a Coulson conductivity cell using nickel with hydrogen as carrier gas, and this procedure was developed (164) for pesticide residues such as the carbamates. Rhoades and Johnson (782) used a similar procedure for examination of cigarette tar for the possible presence of N-nitrosamines.…”