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首页> 外文期刊>Pesticide Research Journal >Dissipation Kinetics, Residue Status and Risk Assessment of Trifloxystrobin and Tebuconazole Combi-product in Cowpea
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Dissipation Kinetics, Residue Status and Risk Assessment of Trifloxystrobin and Tebuconazole Combi-product in Cowpea

机译：Trifloxystrobin和Tebuconazole Combi-Mapics对豇豆的耗散动力学，残留状态及风险评估

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摘要

The dissipation and residues of trifloxystrobin and tebuconazole @ 87.5+175 and 175+350 g a.i. ha~(-1) are reported on cowpea under field condition. After two foliar sprays at 10-day interval,cowpea pods were collected at 0 (1 h), 1, 3, 5, 7, 10, 15, 20 and 42 days (harvest). The initial deposits of trifloxystrobin were 2.27 and 4.72 mg kg~(-1), whereas that of tebuconazole were 6.51 and 12.60 mg kg~(-1) at the standard and double doses, respectively. The dissipation of trifloxystrobin and tebuconazole fitted well to first-order kinetics with half-life values ranging between 1.70-1.72 and 2.29-2.41 days at standard and double doses, respectively. Maximum residue limits (MRLs) being not available for both the fungicides, considering LOQ (0.05 mg kg~(-1)) as MRL, a PHI of 20 days is proposed for cowpea pod (green) and 42 days for seeds. Theoretical maximum dietary intakes (TMDI) were well below maximum permissible intake (MPI) in cowpea pods. The acute and chronic hazard was also less than 0.4 and 5 per cent. Thus, the application of trifloxystrobin and tebuconazole as combi-product at the standard as well as double doses on cowpea did not impart any human health risk at the recommended PHI.
机译：三氟乙酶和Tebuconazole @ 87.5 + 175和175 + 350g A.I的耗散和残留物。 HA〜（-1）在豇豆下报告了现场条件。在10天间隔下喷雾后，在0（1小时），1,3,5,7,10,15,20和42天（收获）收集豇豆荚。三氟硅蛋白的初始沉积物为2.27和4.72mg kg〜（-1），而Tebuconazole的初始沉积物分别在标准和双剂量下分别为6.51和12.60mg kg〜（-1）。三氟甲酰胺和Tebuconazole的耗散井至一阶动力学，半衰期值分别以标准和双剂量为1.70-1.72和2.29-2.41天。考虑LOQ（0.05mg kg〜（-1））作为MRL的最大残留限制（MRLS）不适用于MRL，为豇豆豆荚（绿色）和42天提出了20天的PHI。理论最大膳食摄入量（TMDI）远低于豇豆荚中的最大允许进气（MPI）。急性和慢性危害也小于0.4和5％。因此，在标准中，三氟甲氧基吡酰胺和Tebuconazole作为组合产物的应用以及对豇豆的双剂量并未赋予推荐的PHI的任何人类健康风险。

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