Dissipation and residues of monosultap in rice plant and environment.
A modified method for the analysis of monosultap residue in rice plant and environment was developed and validated. Monosultap residue dynamics and final residues in supervised field trials at GAP conditions were studied. At fortification levels of 0.05, 0.5 and 1 mg kg(-1), it was shown that recoveries ranged from 75.0% to 109.2% with RSDs of 1.2-5.1% (n = 5). The dissipation experiments showed the half-lives (T(1/2)) of monosultap in water, soil and rice plants were 1.1-1.9, 1.4-2.1 and 1.3-2.1 days, respectively. At pre-harvest intervals (PHI) of 21 and 30 days, monosultap residue were 0.01-0.06 mg kg(-1) in soil, 0.01-0.19 mg kg(-1) in rice plants, and 0.01-0.09 mg kg(-1) in husked rice.
Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, People's Republic of China.
Fengzu
F
Zhang
Lei
L
Wang
Li
L
Zhou
Canping
C
Pan
D004784:Environmental Monitoring; D004785:Environmental Pollutants / Q000032:analysis / Q000737:chemistry*; D005618:Fresh Water / Q000737:chemistry; D008401:Gas Chromatography-Mass Spectrometry; D007306:Insecticides / Q000032:analysis / Q000737:chemistry*; D008956:Models, Chemical; D012275:Oryza / Q000737:chemistry*; D010573:Pesticide Residues / Q000032:analysis / Q000737:chemistry*; D018570:Risk Assessment; D012987:Soil / Q000737:chemistry; D013463:Sulfuric Acid Esters / Q000032:analysis / Q000737:chemistry*
D004785:Environmental Pollutants; D007306:Insecticides; D010573:Pesticide Residues; D012987:Soil; D013463:Sulfuric Acid Esters; C049599:S,S'-(2-(dimethylamino)-1,3-propanediyl)thiosulfuric acid ester