A simple method for determining residues of carboxin in grain is presented. The carboxin is extracted from the sample with acetone in a Soxhlet extraction apparatus and, after concentration of the extract, is determined by gas-liquid chromatography using a nitrogen-selective detector. The presence of carboxin is confirmed by the use of a sulphur flame-photometric detector.
J. E. Farrow, R. A. Hoodless and A. Hopkinson, Analyst, 1975, 100, 249 DOI: 10.1039/AN9750000249
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