Publications by authors named "Pankaj Sharma Istatu"
Residue behaviour and dietary risk assessment of cyantraniliprole, flubendiamide and acetamiprid in broccoli were carried out using the QuEChERS (quick, easy, cheap, effective, rugged and safe) technique coupled with LC-MS/MS. The QuEChERS technique was validated on parameters such as linearity, accuracy, precision, robustness, matrix effects, limit of quantification (LOQ), specificity, retention time and ion ratio as per SANTE (Directorate General for Health and Food Safety) guidelines to attest to the specificity, accuracy and precision of the analytical method in estimating insecticide residues in and on broccoli heads and cropped soil. The LOQ of the method for all three insecticides was 0.
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- A field experiment was conducted to evaluate the dissipation of spirotetramat and chlorpyrifos on cabbage heads and soil, using good agricultural practices.
- Samples were analyzed through the QuEChERS method, and results showed that spirotetramat residues fell below detection limits by day 7 and chlorpyrifos by day 10 and 15, depending on the dosage.
- The study established a half-life of 3 days for spirotetramat and 2 days for chlorpyrifos, recommending safe pre-harvest intervals of 9 and 10 days, respectively, while confirming the treated cabbage's safety for consumption based on dietary risk assessments.
Article Synopsis
- Mancozeb and chlorpyrifos residues were analyzed on apple fruits using specific methods, indicating varying initial concentrations based on recommended dosages across multiple locations.
- Initial residue levels showed that mancozeb dissipated below detection limits within 15 to 25 days, while chlorpyrifos residues were undetectable after 15 to 20 days, highlighting differences in persistence.
- Risk assessment indicated low hazard quotients for both pesticides in urban and rural populations, suggesting minimal health risks associated with their consumption in apples.