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<p>A modified quick, easy, cheap, effective, rugged and safe analytical method was utilized for extraction, and GC–MS/MS was used for detection of the residues of novaluron and lambda-cyhalothrin in/on cabbage when applied at the recommended dose, i.e. 75 and 15&#xa0;g a.i. ha<sup>−1</sup>, and 1.25 times the recommended, i.e. 93.75 and 18.75&#xa0;g a.i. ha<sup>−1</sup>, respectively. The analytical method was validated as per European Union guidelines. These insecticides dissipated following first-order kinetics, with half-lives of 1.99 and 1.46&#xa0;days at the recommended dose and 2.83 and 1.89&#xa0;days at 1.25 times the recommended dose for novaluron and lambda-cyhalothrin, respectively. No residues were present in the soil at the time of harvest. These insecticides were safe for human consumption, as the TMDI &lt; MPI, aHQ &amp; cHQ were less than one for both the doses. Removal of outer leaves was the most effective method for maximum per cent reduction in residues.</p>

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Extraction and detection of novaluron and lambda-cyhalothrin in cabbage: a modified QuEChERS approach with GC–MS/MS analysis

  • 期刊论文

  • 发表日期：

    2025年6月8日

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  • Ankur Tomar,
  • Ajay Sharma,
  • Sapna Katna,
  • Tanuja Banshtu,
  • Nisha Devi,
  • Gaganpreet Singh Brar,
  • Arvind Kumar,
  • Shubhra Singh,
  • Sakshi Sharma,
  • Preeti Bansal,
  • Sonali Sharma,
  • Shivani Bhartiya

摘要

A modified quick, easy, cheap, effective, rugged and safe analytical method was utilized for extraction, and GC–MS/MS was used for detection of the residues of novaluron and lambda-cyhalothrin in/on cabbage when applied at the recommended dose, i.e. 75 and 15 g a.i. ha−1, and 1.25 times the recommended, i.e. 93.75 and 18.75 g a.i. ha−1, respectively. The analytical method was validated as per European Union guidelines. These insecticides dissipated following first-order kinetics, with half-lives of 1.99 and 1.46 days at the recommended dose and 2.83 and 1.89 days at 1.25 times the recommended dose for novaluron and lambda-cyhalothrin, respectively. No residues were present in the soil at the time of harvest. These insecticides were safe for human consumption, as the TMDI < MPI, aHQ & cHQ were less than one for both the doses. Removal of outer leaves was the most effective method for maximum per cent reduction in residues.