Abstract：
A field study to understand dissipation rates and effect of various washing treatments on the residues of seven different insecticides, i.e. tetraniliprole 200 SC, emamectin benzoate 5 SG, lufenuron 5.4 EC, indoxacarb 14.5 SC, thiodicarb 75 WP, profenofos 50 EC and cypermethrin 25 EC in/on cauliflower curd has been conducted. The results showed that initial deposits (just after the last insecticide application, i.e. 0 d) of tetraniliprole, emamectin benzoate, lufenuron, indoxacarb, thiodicarb, profenofos and cypermethrin were 0.43, 0.03, 0.25, 0.28, 0.38, 6.70 and 0.68 mg kg-1, respectively. The dissipation pattern of all the tested insecticides followed monophasic, first order kinetics with the half-lives of 6.25, 8.85, 3.27, 7.71, 4.36, 2.98 and 3.76 d, respectively. Proposed pre-harvest intervals for these insecticides are 6, 9, 3, 8, 4, 3 and 4 d, respectively. All the decontamination techniques showed reductions in residue levels. However, treatment by soaking in 5% sodium bicarbonate aqueous solution showed 54%, 42%, 53%, 48%, 22%, 54% and 77% maximum reductions in residues of tetraniliprole, emamectin benzoate, lufenuron, indoxacarb, profenofos and cypermethrin, respectively, in cauliflower curds. The next best treatment was soaking cauliflower curds in water at 45-50 °C for 10 min, which reduced the residues of cypermethrin, profenofos, tetraniliprole, thiodicarb, emamectin benzoate and lufenuron.
摘要：
一项实地研究，以了解消散率和各种洗涤处理对七种不同杀虫剂残留的影响，即tetraniliprole200SC，甲氨基阿维菌素苯甲酸酯5SG，卢芬隆5.4EC，吲哚沙威14.5SC，硫双威75WP，profenofos50EC和氯氰菊酯25EC在花椰菜豆腐中/上进行了研究。结果表明，最初的沉积物(就在最后一次杀虫剂施用后，即0d)tetraniliprole，甲氨基阿维菌素苯甲酸酯，卢芬隆,吲哚沙卡威,硫双威,profenofos和氯氰菊酯分别为0.43、0.03、0.25、0.28、0.38、6.70和0.68mgkg-1。所有测试的杀虫剂的消散模式都是单相的，一级动力学，半衰期为6.25、8.85、3.27、7.71、4.36、2.98和3.76d，分别。这些杀虫剂的建议收获前间隔为6、9、3、8、4、3和4天，分别。所有的去污技术都显示出残留物水平的降低。然而,在5%碳酸氢钠水溶液中浸泡处理显示54%，42%,53%,48%,22%,54％和77％的最大减少四氢卟啉的残留物，甲氨基阿维菌素苯甲酸酯，卢芬隆,吲哚沙卡威,profenofos和氯氰菊酯，分别,花椰菜凝乳。下一个最佳处理方法是将花椰菜凝乳在45-50°C的水中浸泡10分钟，减少氯氰菊酯的残留，profenofos,tetraniliprole,硫双威,甲氨基阿维菌素苯甲酸酯和卢非农。
