State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025, People's Republic of China.
Bull Environ Contam Toxicol. 2014 Jun;92(6):752-7. doi: 10.1007/s00128-014-1283-9. Epub 2014 Apr 22.
Dissipation rate and residue distribution of dufulin in tomato and soil under field conditions were investigated in Guiyang, Tianjin, and Haikou during 2011-2012, using ultra-performance liquid chromatography. Average recoveries of dufulin in tomato and soil ranged from 91.03 % to 95.16 % and 94.35 % to 98.34 %, respectively, with relative standard deviations of 1.16 %-3.97 %. Dufulin dissipation followed first-order kinetics. Dufulin had half-lives of 2.8, 4.7, and 9.0 days in tomato and 6.1, 8.2, and 17.2 days in soil in Guiyang, Tianjin, and Haikou, respectively. At harvest, dufulin residues in tomato samples collected 5 days after the last application at 3 times recommended dosage applied every 5 days were below 1.0 mg kg(-1).
2011-2012 年，采用超高效液相色谱法，在贵阳、天津和海口三地田间条件下，研究了多杀菌素在番茄和土壤中的消解动态和残留分布。多杀菌素在番茄和土壤中的平均回收率分别为 91.03%-95.16%和 94.35%-98.34%，相对标准偏差为 1.16%-3.97%。多杀菌素的消解符合一级动力学。在贵阳、天津和海口三地，多杀菌素在番茄中的半衰期分别为 2.8、4.7 和 9.0 天，在土壤中的半衰期分别为 6.1、8.2 和 17.2 天。末次施药后 5 天，每 5 天施药 3 次推荐剂量的多杀菌素在番茄中的残留量低于 1.0mg/kg。
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