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Research Conducted at Guangdong Pharmaceutical University Has Provided New Information about Fullerenes (Magnetic single-walled carbon...

September 12, 2014



Research Conducted at Guangdong Pharmaceutical University Has Provided New Information about Fullerenes (Magnetic single-walled carbon nanotubes-dispersive solid-phase extraction method combined with liquid chromatography-tandem mass ...)

By a News Reporter-Staff News Editor at Science Letter -- A new study on Fullerenes is now available. According to news reporting out of Guangdong, People's Republic of China, by NewsRx editors, research stated, "In this study, magnetic single-walled carbon nanotubes (MSWCNTs) were prepared by impregnating magnetic Fe3O4 nanoparticles onto the surfaces of carboxylic single-walled carbon nanotubes based on electrostatic interactions. The prepared MSWCNTs were used as the adsorbent for the dispersive solid-phase extraction (DSPE) of paraquat from human urine."

Our news journalists obtained a quote from the research from Guangdong Pharmaceutical University, "After adsorption, the paraquat was quantitatively desorbed with 5%TFA in acetonitrile and determined by HPLC-MS. Extraction parameters such as the type of CNT adsorbent, extraction time, sample volume, wash solvent, and the type and volume of desorption solvent were optimized to obtain high DSPE recoveries and extraction efficiencies. Under the optimized conditions, the calibration curve was linear in the range 3.75-375.0 mu g/L with a correlation coefficient of 0.999 45. The LOD (S/N = 3) and LOQ (S/N = 10) were 0.94 and 2.82 mu g/L, respectively. The recoveries ranged from 92.89 to 108.9% for spiked real urine samples with RSDs below 3.21%. Finally, the new method was successfully used to determine paraquat in urine samples of suspected paraquat poisoning patients."

According to the news editors, the research concluded: "The MSWCNTs exhibited suitable properties and a high adsorption capacity for the extraction of paraquat."

For more information on this research see: Magnetic single-walled carbon nanotubes-dispersive solid-phase extraction method combined with liquid chromatography-tandem mass spectrometry for the determination of paraquat in urine. Journal of Chromatography B-Analytical Technologies in the Biomedical and Life Sciences, 2014;965():85-90. Journal of Chromatography B-Analytical Technologies in the Biomedical and Life Sciences can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands (see also Fullerenes).

Our news journalists report that additional information may be obtained by contacting X.L. Ruan, Guangdong Pharmaceut Univ, Guangzhou 510315, Guangdong, People's Republic of China. Additional authors for this research include J.J. Qiu, C. Wu, T. Huang, R.B. Meng and Y.Q. Lai.

Keywords for this news article include: Guangdong, People's Republic of China, Asia, Carbon Nanotubes, Emerging Technologies, Fullerenes, Nanotechnology

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Science Letter


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