RESEARCH ON METHOD OF ANALYESE OF RESIDUES CONTENT OF BUTACHLOR IN BRASSICA CHINESIS LINN. AND IPOMOEAREPTANS (L.) POIR

The method of analyses of residues content of herbicide butachlor in Brassica chinesis Linn. and Ipomoea reptans (L)Poir was first reported. The method of minimum detectable content was 7.54?10-15g. The minimum detectable concentration in Brassica chinesis Linn, was 0.007ppm and 0.002ppm in Ipomoea reptans (L.) Poir.The average recovery values were 98.6-105.5% and 89.5-108% and C.V (%) were 2.75-9.25 and 0.78-6.7. The terminal residues content of field vegetable samples would not detected out.