中文摘要:本文应用GC-MS定量检测法进行番茄两种杀虫剂组合残留的耗散动力学研究。实验结果发现,喷洒10-15天后,杀虫剂残留低于定量限,氟吡菌胺农药残留半衰期为2-4天,霜霉威农药残留半衰期为1-2天。根据印度食品安全和标准局和经济合作与发展组织规定的最大残留值计算方法,氟吡菌胺的最大残留值为5μg/kg,霜霉威的最大残留值为15μg/kg,商品采摘间隔临界值为1天。
外文摘要:Dissipation kinetics of two systemic fungicides, namely fluopicolide and propamocarb used as a combination formulation (Infinito 68.75 SC), were studied on tomato at four different locations by the All India Network Project on Pesticide Residues to recommend their pre-harvest interval (PHI) and to propose the maximum residue limits (MRL) for the two fungicides based on chronic hazard exposure assessment. The combination fungicide was sprayed thrice at the recommended dosage of 93.75 g a.i./ha fluopicolide and 937.50 g a.i./ha propamocarb as well as at double the recommended dosage of 187.50 g a.i./ha fluopicolide and 1875.0 g a.i./ha propamocarb on tomato crops and the residues were monitored periodically by GC-MS. The fungicides dissipated to below the limit of quantification (LOQ) within 10 to 15 days, with a half-life of 2-4 days for fluopicolide and 1-2 days for propamocarb. Taking into consideration the MRLs of codex and calculations made using the method of MRL fixation of the Food Safety and Standard Authority of India (FSSAI) as well as the Organization for Economic Co-operation and Development (OECD) calculator, MRL of 5 mg/kg is proposed for fluopicolide and 15 mg/kg for propamocarb, following critical exposure of the commodity considering PHI of 1 day.
外文关键词:MRL, Systemic fungicide, Fluopicolide, Propamocarb, Analytical method, GC-MS, Tomato
作者:Sharma, K. K.; Shukla, V. R.; Patel, A. R.; Vaghela, K. M.; Patel, H. K.; Shah, Paresh G.; Banerjee, Hemanta; Banerjee, Tirthankar; Hudait, Ram K.; Sharma, Debi; Sahoo, S. K.; Singh, Balwinder; Tripathy, Vandana
作者单位:ICAR Indian Agr Res Inst, All India Network Project Pesticide Residues, New Delhi 110012, India.
期刊名称:ENVIRONMENTAL MONITORING AND ASSESSMENT
期刊影响因子:1.633
出版年份:2016
出版刊次:11
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