臭氧水浸泡對多種農(nóng)藥殘留均有良好的去除效果。用濃度為 0.4 mg/kg 臭氧水洗滌 30 min 后,菠菜中毒死蜱、腈菌唑、戊唑醇、聯(lián)苯菊酯、高效氯氟氰菊酯、高效氯氰菊酯、順式氰戊菊酯、苯醚甲環(huán)唑、啶蟲脒和吡蟲啉的殘留量分別降低了 53%、72%、73%、62%、67%、65%、78%、68%、64% 和 63%,與自來水清洗相比,清除效果提升了三到四倍。并且處理時間越長效果越好,例如臭氧氧化15 min 可使蘋果上毒死蜱、氯氰菊酯、嘧菌酯、己唑醇、甲基對硫磷、百菌清六種農(nóng)藥殘留降低 26.91%~73.58%,臭氧氧化 30 min 可使農(nóng)藥殘留降低 39.39%~95.14%。
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