Determination of Residues of Organophosphorus Pesticides with a Flame Photometric Detector

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Abstract
A flame photometric detector recently described as highly specific for phosphorus- and sulfur-containing compounds has been found useful for the analysis of organophosphorus pesticides at the low nanogram level. Because of the detector's high specificity the need for cleanup prior to chromatography is markedly diminished. Chlorinated compounds, even at the microgram level, do not interfere.