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Evaluation of Carbon Nanotubes as a Solid-phase Extraction Adsorbent for the Extraction of Cephalosporins Antibiotics, Sulfonamides and Phenolic Compounds from Aqueous Solution by Hongyun Niu; Yaqi Cai; Yali Shi; Fusheng Wei; Jiemin Liu; Shifen Mou; Guibin Jiang is a Chemistry article available to read on EtoBox.
What is Evaluation of Carbon Nanotubes as a Solid-phase Extraction Adsorbent for the Extraction of Cephalosporins Antibiotics, Sulfonamides and Phenolic Compounds from Aqueous Solution about?
The adsorptive potential of carbon nanotubes (single-walled carbon nanotubes and multi-walled carbon nanotubes) for solid-phase extraction of three groups of highly polar compounds (namely cephalosporins antibiotics, sulfonamides and phenolic compounds) was tested in this article. The analytes were strongly retained by the carbon nanotubes. And acceptable recoveries were obtained with the addition of ammonium acetate into eluents. The effects of solution pH on the recoveries of the antibiotics and phenolic compounds were examined. To check the retention abilities of three groups of compounds on carbon nanotubes, fixed amount of each analyte was added to different volumes (up to 500 mL) of aqueous solution, and then extracted by the sorbents. Comparative studies showed that the carbon nanotubes were much superior to C 18 for the extraction of the highly polar analytes. For the cephalosporins antibiotics and sulfonamides, the carbon nanotubes showed stronger retention capability than graphitized carbon blacks, but for some of the phenolic compounds graphitized carbon blacks seemed to be more suitable, indicating different retention mechanisms of these analytes. To further assess the
Who reads Evaluation of Carbon Nanotubes as a Solid-phase Extraction Adsorbent for the Extraction of Cephalosporins Antibiotics, Sulfonamides and Phenolic Compounds from Aqueous Solution?
It is typically read by researchers, students, and practitioners in Chemistry.
- Author
- Hongyun Niu; Yaqi Cai; Yali Shi; Fusheng Wei; Jiemin Liu; Shifen Mou; Guibin Jiang
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0003-2670)
- Published
- 2007
- Language
- EN
- Field
- Chemistry (Physical Sciences)