Vol. 12, Issue 6 (2023)

Author(s):
Pooja, Sushil Ahlawat, Ashu and Sakshi Goyal

Abstract:
In the present study, the risk assessment, dissipation behavior, persistence, and half-life period of quinalphos have been investigated on Tomato fruit by spraying the pesticide at the fruiting stage followed by another application after a ten-day interval. Gas chromatography-tandem mass spectrometry was used to analyze the residues of quinalphos from the samples after extraction using the quick, easy, cheap, effective, rugged, and safe method. In this paper, we present a novel, accurate, and cost-effective gas chromatography method for determining average tomato deposits of quinalphos. After the application of insecticide, quinalphos deposits were 0.307 mg/kg and the residues dissipated by following the first-order kinetics with a half-life of 2.62 days. At the recommended dosage, quinalphos residues reached below detection limits of quantification (0.05 mg/kg) after 7 days. For risk assessment studies, the 10th day will be safe for consumers to consume tomatoes.