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<p>In this study, a method for the determination of three medicinal and food homologous crops (fresh and dried <i>Panax notoginseng</i>, <i>Lilium</i>, and <i>Lonicera japonica</i>) was established, which had good linearity (R<sup>2</sup> &gt; 0.9971), accuracy (77%–104%) and precision (intraday RSD of 0.4% to 8.9%, interday RSD of 1.7% to 7.8%). The limit of quantification (LOQ) was 0.01 mg/kg. Field results showed that there was a significant difference in the residue of lambda-cyhalothrin in the three crops. In <i>Panax notoginseng</i>, the residue level exhibited a trend of first increasing and then decreasing; in <i>Lilium</i>, the residue level was always lower than the LOQ; while the dissipation and metabolism of lambda-cyhalothrin in <i>Lonicera japonica</i> conformed to the first-order kinetic model, with an average half-life of 2.75 d. Chronic and acute dietary risk assessment the safety of lambda-cyhalothrin in the edible fraction of three crops was further evaluated with a risk quotient for chronic exposure （RQc） of 71.33% and a risk quotient for acute exposure （RQa） of 0.012%–0.345%, which indicates that it is unlikely to cause public safety problems.</p>

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Residues and Dietary Risk of Lambda-Cyhalothrin in Fresh and Dried Panax notoginseng, Lilium, and Lonicera japonica

  • 期刊论文

  • 发表日期：

    2025年8月30日

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  • Haojie Wang,
  • Hui Ye,
  • Zhaojun Meng,
  • Wen Dou,
  • Xiangyun Wang,
  • Hongmei He,
  • Jianzhong Yu,
  • Xiaohui Li ,
  • Xueping Zhao,
  • Changpeng Zhang

摘要

In this study, a method for the determination of three medicinal and food homologous crops (fresh and dried Panax notoginseng, Lilium, and Lonicera japonica) was established, which had good linearity (R2 > 0.9971), accuracy (77%–104%) and precision (intraday RSD of 0.4% to 8.9%, interday RSD of 1.7% to 7.8%). The limit of quantification (LOQ) was 0.01 mg/kg. Field results showed that there was a significant difference in the residue of lambda-cyhalothrin in the three crops. In Panax notoginseng, the residue level exhibited a trend of first increasing and then decreasing; in Lilium, the residue level was always lower than the LOQ; while the dissipation and metabolism of lambda-cyhalothrin in Lonicera japonica conformed to the first-order kinetic model, with an average half-life of 2.75 d. Chronic and acute dietary risk assessment the safety of lambda-cyhalothrin in the edible fraction of three crops was further evaluated with a risk quotient for chronic exposure （RQc） of 71.33% and a risk quotient for acute exposure （RQa） of 0.012%–0.345%, which indicates that it is unlikely to cause public safety problems.