Pesticide Residue Analysis Laboratory, Department of Entomology, Punjab Agricultural University, Ludhiana, 141004, Punjab, India.
Bull Environ Contam Toxicol. 2012 Apr;88(4):501-6. doi: 10.1007/s00128-012-0534-x. Epub 2012 Feb 4.
A supervised field trial was conducted to study the residues of chlorantraniliprole on cabbage and cauliflower. Three applications of chlorantraniliprole at 10 days interval were made @ 9.25 and 18.50 g a.i. ha(-1). The samples of marketable size heads and curds of cabbage and cauliflower were collected at 0 and 1 day after the last application. QuEChERS sample preparation was used for the determination of chlorantraniliprole residues on cabbage heads and cauliflower curds. The residues of chlorantraniliprole were quantified by high performance liquid chromatography (HPLC) with photo diode array (PDA) detector and confirmed by high performance thin layer chromatography (HPTLC). Washing of cabbage and cauliflower with tap water removed about 17%-40% of chlorantraniliprole residues. However, boiling removed 100% of chlorantraniliprole residues on cabbage and cauliflower in both the cases.
采用田间试验和残留分析方法，研究了氯虫苯甲酰胺在甘蓝和菜花上的残留消解动态。设 3 次施药，每次施药间隔 10 d，施药剂量为 9.25 和 18.50 g a.i. ha(-1)。最后一次施药后 0 和 1 d 分别采集可销售大小的甘蓝和菜花头及花球样品。采用 QuEChERS 方法提取和净化，用高效液相色谱-光电二极管阵列检测法（HPLC-PDA）测定甘蓝和菜花中氯虫苯甲酰胺的残留量，并用高效薄层色谱法（HPTLC）确证。用自来水冲洗甘蓝和菜花可去除 17%-40%的氯虫苯甲酰胺残留，煮沸可去除 100%的残留。
