Abstract
A new fibrous sorbent containing ethylenediamine, carboxyl, and tetrazine groups based on polyacrylonitrile fiber was synthesized and developed for the preconcentration of heavy metal ions. The experimental parameters such as pH value, sorptive capacity, flow velocity, reuse, as well as eluent type and concentration were investigated in detail. All the studied metal ions can be quantitatively retained by the modified fiber under pH ≥ 3.5, then eluted by using a mixture of 1 mol/L hydrochloric acid and 5% thiocarbamide as eluent warmed to 40°C. The column technique was applied for the concentration of Cu(II), Cd(II), Zn(II), Mn(II), Pb(II), Co(II), and Ni(II) ions in model samples with satisfactory results, and the relative standard deviations for the determination of metal ions were found to be less than 5%. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 74: 2631–2636, 1999
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
