Recently, Oleszczuk et al. (i) has reported the adsorption-desorption of two pharmaceuticals including oxytetracycline (OTC) and carbamazepine (CBZ) on multiwalled carbon nanotubes (MWCNT). We would like to comment on several issues, as discussed below.
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Department of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST), 261 Cheomdan-gwagiro, Buk-gu, Gwangju 500-712, Republic of Korea;