@misc{indiciae627ea2600c75, title = {Chemically modified polymeric sorbents for sample preconcentration.}, author = {M E León-González and L V Pérez-Arribas}, year = {2000}, doi = {10.1016/s0021-9673(00)00942-0}, url = {https://pubmed.ncbi.nlm.nih.gov/11192161/}, note = {Source identifier: 11192161} }