... Pharmaceuticals 82 3. 3 Sample Extr act ion Tech n iques 83 3 .3. 1 Solid–Liquid Extraction 86 3. 3.2 Sonication-Assisted Extraction 86 3. 3 .3 Pressurized Liquid Extraction (PLE) 87 3. 3.4 Microwave-Assisted ... 3 2 (3 4): 31 5 32 1.12. Sithole, B.B. and Guy, R.D., 1987. Models for tetracycline in aquatic environments.I.Interactionwithbentoniteclaysystems.Water, Air, and Soil Pollution 32 (3 4): 30 3 31 4. 13 . ... 74(14): 35 66 35 74. 39 . Brandsteterova,E.,Kubalec,P.,Bovanova,L.,Simko,P.,Bednarikova,A.,andMach-ackova,L.,1997.SPEandMSPDaspre-separationtechniquesforHPLCoftetracy-clines in meat, milk, and...