Abstract
A new ion-exchange chelating fiber with aminophosphonic and dithiocarbamate groups based on polyacrylonitrile was developed for the preconcentration of rare earth elements (REEs) in seawater prior to their determination by inductively coupled plasma mass spectrometry. REEs can be easily separated from the high-saline matrix using the fiber. The optimum experimental parameters such as pH, flow rate, sample volume, and effect of matrix ions for preconcentration of REEs were investigated. All REEs in water can be quantitatively retained in the acidity range of pH 3−6 by the fiber and then eluted quantitatively with 0.01 mol L-1 ammonium citrate. The fiber has been applied to the concentration of REEs in seawater. The relative standard deviations for the determination of REEs in seawater at nanogram per liter levels were found to be less than 5%. A reasonably good agreement is obtained with the data reported in the literature.
Sign-in/Register to access full text options 
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.
