Dissipation and Evaluation of Metaldehyde Residues in Cabbage Grown in Open Fields
The residual levels and dissipation rates of metaldehyde in cabbage and soil at three main cabbage-growing areas in china were determined by A simple，rapid and sensitive analytical method with liquid chromatography with TripleQuad mass spectrometry (LC–MS–MS). The limit of quantification (LOQ) was 0.0005,0.0005mg/kg for soil and cabbage, respectively. The mean half-life of metaldehyde was 5.84 days in cabbage and 3.17 days in soil. The final residues in cabbage and soil detected at 7 days after the last spreading were considerably all below 1mg/kg (the MRL of China). Low residues in cabbage and soil suggest that this pesticide may be safe to use under the recommended dosage.
Weiguo Pan, Jianxing Ren and Yongguang Li
Y. Q. Ma et al., "Dissipation and Evaluation of Metaldehyde Residues in Cabbage Grown in Open Fields", Advanced Materials Research, Vols. 347-353, pp. 1987-1993, 2012