Single-drop microextraction application for the rapid and sensitive determination of endosulfan and its metabolites in water samplesFouad Mourabit, Mhamed Ahari, Elhoussien Akichouh and Nadira MourabitE3S Web Conf., 502 (2024) 04005DOI: https://doi.org/10.1051/e3sconf/202450204005