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首页> 外文期刊>Pesticide Research Journal >HPLC-PDA Determination of Chlorpyrifos and Glyphosate Residues in Mango Orchard Soil and their Subsequent Uptake to Mango Fruit
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HPLC-PDA Determination of Chlorpyrifos and Glyphosate Residues in Mango Orchard Soil and their Subsequent Uptake to Mango Fruit

机译：HPLC-PDA测定芒果果园土壤中氯吡啶和草甘膦残留物及其随后对芒果果实的摄取

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摘要

Chlorpyrifos and glyphosate are used to control mango mealybug and weeds respectively in mango ecosystem. Chlorpyrifos (2.5 and 5.0 mL L~(-1) of water) and glyphosate (8.0 and 16.0 mL L~(-1) of water) were applied to mango (cv. Dashehari) orchard soil to study their dissipation in soil and subsequent uptake in mango fruit using HPLC-PDA. Chlorpyrifos and glyphosate applied at standard and double doses, respectively dissipated from 5.05 and 8.30 mg kg~(-1), and 3.37 and 6.12 mg kg~(-1) after 2 h of soil application to 0.75 and 1.07 mg kg~(-1), and 0.61 and 1.04 mg kg~(-1) after 50 and 30 d of application. Residue of glyphosate was below detectable limit in soil beyond 30 d of application. The residual half-lives of chlorpyrifos and glyphosate in soil were 17-18 and 12-13 d from the standard and double doses, respectively. The rate of dissipation followed first-order exponential kinetics in soil for both the concentrations. Residues of either pesticide were below detectable limit in mature fruits at harvest. Hence, both the pesticides can be considered safe for their respective uses in mango ecosystem.
机译：氯吡啶和草甘膦用于在芒果生态系统中分别用于控制芒果肉白盐和杂草。将氯吡啶（2.5和5.0mL L〜（-1）水）和草甘膦（8.0和16.0ml L〜（-1）水）应用于芒果（CV.Dashehari）果园土壤，研究他们在土壤中的耗散和随后的污水使用HPLC-PDA在芒果果实中摄取。含有标准和双剂量的紫吡啶和草甘膦，分别从5.05和8.30mg kg〜（-1）和3.37和6.12mg kg〜（-1）在土壤应用2小时后散到0.75和1.07 mg kg〜（ - 1）和0.61和1.04mg kg〜（-1）在50和30 d施用后。草甘膦残余物低于30 d施用的土壤中可检测到的极限。土壤中紫外线和草甘膦的残留半衰期分别是从标准和双剂量分别的17-18和12-13d。散热速度遵循土壤中的一阶指数动力学，占浓度。农药的残留物在收获的成熟水果中低于可检测到的极限。因此，在芒果生态系统中，杀虫剂都可以被认为是安全的。

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