The efficiency of methanol for the extraction of some herbicide residues from soil

摘要

AbstractMethanol was more efficient than solvent systems based on acetonitrile or chloroform for the extraction of a number of weathered herbicide residues from soil. The presence of water in the soil improved recovery. Methanolic extracts, on examination by gas‐liquid chromatography, also gave lower background levels than the extracts with other solvent