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@article{197495,
        author = {Monami Haque},
        title = {QuEChERS Multi-residue Analysis of Selected Organophosphorous Pesticides: Isotherms and Kinetics},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {12},
        number = {11},
        pages = {7043-7046},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=197495},
        abstract = {The widespread use of organophosphorus pesticides (OPPs) in agriculture raises concerns regarding food safety and environmental contamination. This study presents the development and validation of a QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) method for multi-residue analysis of selected OPPs, along with an investigation of their adsorption isotherms and degradation kinetics. Samples were extracted using the QuEChERS method and analyzed through GC-MS. Adsorption behavior was evaluated using Langmuir and Freundlich isotherm models, while degradation kinetics were studied under controlled laboratory conditions. Results demonstrated high recovery rates (85–110%) and good linearity (R² > 0.99). The Freundlich model better described adsorption behavior, indicating heterogeneous surface interactions. Kinetic studies revealed that degradation followed pseudo-first-order kinetics. The findings highlight the efficiency of QuEChERS in pesticide residue analysis and provide insights into environmental fate dynamics of OPPs.},
        keywords = {QuEChERS, Organophosphorous pesticides, multi-residue analysis, Adsorption isotherms, Kinetics, GC-MS, Environmental fate.},
        month = {April},
        }