Abstract
Abstract Complete mechanization of extraction and cleanup steps has been developed for atrazine residues in soils for analysis by nitrogen detector gas chromatography. Manually sieved and weighed soil samples are mechanically presented at a maximum rate of 6 per hour to this system, which delivers cleaned-up solvent extracts of the samples at the same rate to a fraction collector. Adjustment of final solvent volume in collection vessels and gas chromatography are performed manually in the present work. Atrazine residues in soils are thus rapidly determined down to a lower limit of 0.05 ppm.
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