Abstract
AbstractA new type of crown ether crosslinked chitosan was prepared by the reaction of chitosan with synthesized 4,4′‐dibromodibenzo‐18‐crown‐6. Its adsorption behaviors for some ultratrace elements at different sites in Antarctica were studied. The results indicated that the adsorption rates were greater than 95% at pH 7.5, the enrichment factor of the ultraelements was greater than 50, and the detection limits of graphite furnace atomic absorption spectroscopy were improved greatly. The proper analysis conditions were examined, and a new method of detecting ultratrace elements in environmental water samples with dibromodibenzo‐18‐crown‐6 crosslinked chitosan was developed. In addition, the elements could easily be eluted off after absorption by dibenzo‐18‐crown‐6 crosslinked chitosan, and so it is possible for this method to be used as a routine and valuable analysis method in environmental inspections. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 90: 806–809, 2003
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 call
