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<p>Pulses are a common vegetable and grain in the human diet because of their high protein content. The use of pesticides for control is impacted by a variety of pests, which eventually leads to a residue issue in the finished goods. Considering the point, a field trial conducted to study the dissipation of residues of chlorantraniliprole and emamectin benzoate in/on cowpea pods showed initial accumulation of 1.69 and 0.15&#xa0;mg/kg at the recommended doses of 18.50 SC @ 30&#xa0;g a.i./ha and 5 SG @ 10&#xa0;g a.i./ha, respectively. The residues of chlorantraniliprole and emamectin reached below the limit of quantitation (LOQ) of 0.01&#xa0;mg/kg on the 7th and 5th day, respectively. Both the residues followed first-order kinetics with half-lives of 1.1 and 1.9&#xa0;days, respectively. A pre-harvest interval (PHI) of 5&#xa0;days is advised for both pesticides on cowpea when the green pods are to be utilized as human food in order to be safe, according to the current study. Based on theoretical maximum residue contribution (TMRC) and maximum allowed intake (MPI), risk evaluation revealed that TMRC &lt; MPI in every instance.</p>

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Method validation, dissipation and dietary risk assessment of chlorantraniliprole and emamectin benzoate in green cowpea using LC–MS/MS

  • 期刊论文

  • 发表日期：

    2025年9月11日

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  • Rashmit M. Patel,
  • Himanshu C. Patel,
  • Kaushikkumar D. Parmar,
  • Hiren G. Bhatt,
  • Nitesh S. Litoriya

摘要

Pulses are a common vegetable and grain in the human diet because of their high protein content. The use of pesticides for control is impacted by a variety of pests, which eventually leads to a residue issue in the finished goods. Considering the point, a field trial conducted to study the dissipation of residues of chlorantraniliprole and emamectin benzoate in/on cowpea pods showed initial accumulation of 1.69 and 0.15 mg/kg at the recommended doses of 18.50 SC @ 30 g a.i./ha and 5 SG @ 10 g a.i./ha, respectively. The residues of chlorantraniliprole and emamectin reached below the limit of quantitation (LOQ) of 0.01 mg/kg on the 7th and 5th day, respectively. Both the residues followed first-order kinetics with half-lives of 1.1 and 1.9 days, respectively. A pre-harvest interval (PHI) of 5 days is advised for both pesticides on cowpea when the green pods are to be utilized as human food in order to be safe, according to the current study. Based on theoretical maximum residue contribution (TMRC) and maximum allowed intake (MPI), risk evaluation revealed that TMRC < MPI in every instance.