These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Dispersive micro-solid phase extraction of aromatic amines based on an efficient sorbent made from poly(1,8-diaminonaphtalen) and magnetic multiwalled carbon nanotubes composite.
    Author: Jalilian N, Ebrahimzadeh H, Asgharinezhad AA.
    Journal: J Chromatogr A; 2017 May 26; 1499():38-47. PubMed ID: 28410802.
    Abstract:
    In this work, the extraction of aromatic amines with an efficient magnetic multiwalled carbon nanotubes/Fe3O4@Poly(1,8-diaminonaphtalen) (MWCNTs/Fe3O4@PDAN) composite followed by HPLC-DAD was presented. Imprimis, the comparison among different magnetic nanosorbents including Fe3O4, MWCNTs/Fe3O4, Fe3O4@PDAN and MWCNTs/Fe3O4@PDAN was conducted. The obtained results, exhibited that the MWCNTs/Fe3O4@PDAN composite has the highest extraction efficiency for target analytes (3-nitroaniline, 4-chloroaniline, 4-bromoaniline and 3,4-dichloroaniline). This sorbent was characterized by Fourier transform infrared spectroscopy, X-ray dispersive spectroscopy, thermogravimetry analysis, scanning electron microscopy, transition electron microscopy, vibrating sample magnetometry and X-ray diffraction. Design of experiment approach was applied to find out the optimal experimental conditions. The optimal extraction conditions were: pH of the sample, 10; sorbent amount, 10mg; sorption time, 15min; salt concentration, 10% w/w; type and volume of the eluent, 0.01molL-1 HCl in acetonitrile, 145μL; elution time; 2min. Under the optimal extraction conditions detection limits and linear dynamic ranges were achieved in the range of 0.1-0.25μgL-1 and 0.25-500μgL-1, respectively. The percent of extraction recovery and relative standard deviations (n=5) were in the range of 31.2-82.8% and 3.4-5.6%, respectively. Finally, the applicability of the method was successfully confirmed by the extraction and determination of target analytes in various water samples.
    [Abstract] [Full Text] [Related] [New Search]