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首页> 外文期刊>Chromatography Research International >Estimation of Diafenthiuron Residues in Cardamom (Elettaria cardamomum(L.) Maton) Using Normal Phase HPLC: Dissipation Pattern and Safe Waiting Period in Green and Cured Cardamom Capsules
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Estimation of Diafenthiuron Residues in Cardamom (Elettaria cardamomum(L.) Maton) Using Normal Phase HPLC: Dissipation Pattern and Safe Waiting Period in Green and Cured Cardamom Capsules

机译：使用正相HPLC估算小豆蔻（Elettaria cardamomum（L。）Maton）中的敌草硫隆残留：绿色和固化小豆蔻胶囊的耗散模式和安全等待时间

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Diafenthiuron is an effective insecticide used for pest management in cardamom. Residues of diafenthiuron and its degradation/dissipation pattern in cardamom were determined to work out safe waiting period. Samples were collected after three sprays of diafenthiuron @ 400 and 800 g a.i ha−1and the residues extracted in acetonitrile and quantified in normal phase HPLC in UV detector. Diafenthiuron was detected in6.61±0.1 min. The limits of detection (LOD) and limits of quantification (LOQ) were determined to be 0.01 and 0.05 μgmL−1. The initial deposits were found to be 3.82 and 4.10 μg g−1after sprays of diafenthiuron @ 400 g a.i ha−1in the first and second experiments, respectively. Nearly cent percent of residues dissipated at 10 days after treatment in the recommended dose of diafenthiuron 400 g a.i ha−1and the half life varied from 2.0 to 2.8 days with a waiting period of 5.5 to 6.7 days in green capsules of cardamom. The waiting period was 5.4 to 7.0 days in cured capsules of cardamom. With harvest being the focal point for enforcement of residue tolerances, the suggested waiting period of seven days is safe without the problem of pesticide residues in harvestable produce.
机译：地芬硫龙是一种用于豆蔻中害虫管理的有效杀虫剂。确定了豆蔻中地芬硫龙的残留及其降解/消散模式，以计算出安全的等待时间。分别在400和800 gga.ihaha-1上喷三次地芬硫龙后收集样品，并在乙腈中提取残留物，并在UV检测器中的正相HPLC中进行定量。在6.61±0.1 min内检测到苯乙硫脲。检出限（LOD）和定量限（LOQ）分别为0.01和0.05μggmL-1。在第一个实验和第二个实验中，分别喷洒了400克ga.i ha-1的地芬硫龙后，初始沉积物分别为3.82和4.10μggg-1。在推荐剂量的地芬硫龙400微克/小时-1的治疗后10天，几乎有百分之一的残留物消散，半衰期从2.0到2.8天不等，等待时间为5.5到6.7天。豆蔻治愈胶囊的等待期为5.4至7.0天。由于收获是实施残留限量的重点，因此建议的7天等待期是安全的，不会出现可收获产品中残留农药的问题。

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