Multi-location supervised field trials were conducted at four different agro climatic locations in India to evaluate the dissipation pattern of deltamethrin on chili. Deltamethrin 10 EC was applied on chili @17.5 and 35 g a.i. ha−1, samples of green chili were drawn at different time intervals and that of red chili and soil at harvest time and quantified by gas liquid chromatography equipped with electron capture detector. The identity of residues were confirmed by Gas Chromatograph–Mass Spectrophotometer in selective ion monitoring mode in mass range 181, 253 m/z. Limit of quantification of the method was found to be 0.01 mg kg−1. Half-life of deltamethrin at application rate of 17.5 g a.i. ha−1 varied from 0.36 to 1.99 days and at double the application rate was found to range from 0.38 to 2.06 days. Residues of deltamethrin were found below its determination limit of 0.01 mg kg−1 in red chili and soil. On the basis of the data generated, Deltamethrin 10 EC has been registered for use on chili in India and its Maximum Residue Limit has been fixed as 0.05 μg/g.
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机译：在印度的四个不同农业气候地点进行了多地点监督田间试验，以评估溴氰菊酯在辣椒上的消散模式。将溴氰菊酯10 EC施用到17.5和35 g a.i的辣椒上。 ha −1 ，分别在不同的时间间隔提取绿色辣椒样品，在收获时提取红色辣椒和土壤样品，并通过配备电子捕获检测器的气相色谱法进行定量。残留物的鉴定通过气相色谱-质谱仪以选择性离子监测模式在质量范围181，253 m / z中进行确认。该方法的定量限为0.01 mg kg -1 。溴氰菊酯在17.5 g a.i施用量下的半衰期ha −1 从0.36到1.99天不等，发现施用量的两倍范围为0.38到2.06天。在红辣椒和土壤中发现溴氰菊酯的残留量低于其测定极限0.01 mg kg -1 。根据生成的数据，溴氰菊酯10 EC已注册用于印度的辣椒，其最大残留限量已固定为0.05μg/ g。
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