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Researchers from Shahid-Beheshti University Describe Findings in Fullerenes

February 7, 2014

By a News Reporter-Staff News Editor at Science Letter -- New research on Fullerenes is the subject of a report. According to news originating from Tehran, Iran, by NewsRx correspondents, research stated, "In this work, carbon-nanotube-assisted electromembrane extraction in the two-phase mode combined with GC was developed for the preconcentration and determination of basic drugs in body fluids. The multiwalled carbon nanotubes dispersed in organic solvent are held in the pores of the porous fiber wall by capillary forces and sonification."

Our news journalists obtained a quote from the research from Shahid-Beheshti University, "The membrane with immobilized carbon nanotubes acts as a sorbent and provides an additional pathway for analyte transport. This study demonstrates that the immobilization of carbon nanotubes in the supported liquid membrane is an excellent approach to enhance the performance of the extraction. Optimization of the variables affecting this method was carried out in order to achieve the best extraction efficiency. Optimal extractions were accomplished with octanol as the extraction solvent, 50 V as the driving force and pH 7.4 in the sample solution with the whole assembly agitated at 1000 rpm for 20 min. Under the optimized extraction conditions, the proposed technique provided good linearity (R-2 > 0.9990), repeatability (3.5-3.8%), low LODs (1.5 ng/mL), good preconcentration factors (292-316) and high recoveries (80-87%)."

According to the news editors, the research concluded: "Finally, this method was successfully used for the determination of tramadol and methadone in different body fluids including plasma and urine samples."

For more information on this research see: Development of carbon-nanotube-assisted electromembrane extraction in the two-phase mode combined with GC for the determination of basic drugs. Journal of Separation Science, 2014;37(1-2):85-91. Journal of Separation Science can be contacted at: Wiley-V C H Verlag Gmbh, Boschstrasse 12, D-69469 Weinheim, Germany. (Wiley-Blackwell -; Journal of Separation Science -

The news correspondents report that additional information may be obtained from K.S. Hasheminasab, Shahid Beheshti Univ, Fac Sci, Dept. of Chem, GC, Tehran, Iran. Additional authors for this research include A.R. Fakhari and M.H. Koruni (see also Fullerenes).

Keywords for this news article include: Iran, Asia, Tehran, Fullerenes, Nanotechnology, Carbon Nanotubes, Emerging Technologies

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Source: Science Letter

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