@misc{indiciaef75ae93a459e, title = {Optimization of solid-phase extraction and solid-phase microextraction for the determination of alpha- and beta-endosulfan in water by gas chromatography-electron-capture detection.}, author = {M C López-Blanco and B Reboreda-Rodríguez and B Cancho-Grande and J Simal-Gándara}, year = {2002}, doi = {10.1016/s0021-9673(02)01232-3}, url = {https://pubmed.ncbi.nlm.nih.gov/12462621/}, note = {Source identifier: 12462621} }