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Reference type: Journal
Authors: Liu BJ, Wang DF, Gao X, Zhang L, Xu Y, Li YJ
Article Title: Removal of arsenic from Laminaria japonica Aresch juice using As(III)-imprinted chitosan resin.
Publication date: 2011
Journal: European Food Research and Technology
Volume: 232
Issue: (5)
Page numbers: 911-917.
DOI: 10.1007/s00217-011-1460-6
Alternative URL: http://www.springerlink.com/content/947q465543772805/

Abstract: An As(III)-imprinted chitosan resin (As-ICR) was successfully prepared to selectively remove arsenic from Laminaria japonica Aresch (LJA) juice. Batch adsorption experiments and column adsorption experiments were performed to evaluate the adsorption conditions, selectivity, and reusability. The results showed that the minimum total arsenic concentration of the juice was 4.16 mg/L at pH 6.0, 40 C, with equilibrium time 4 h. The selectivity of As-ICR for arsenic was much higher than that of non-imprinted chitosan resin. As-ICR could be reused for 10 times with only about 13% regeneration loss. FTIR spectra demonstrated that the adsorption of As-ICR for arsenic occurred on amino and hydroxyl groups. Total arsenic concentration of the juice decreased significantly, while the other metal ions decreased except Zn2+ insignificantly. This suggests that As-ICR is a very promising sorbent for selective removal of arsenic from the juice
Template and target information: Arsenic, As(III)
Author keywords: ion-imprinted, Chitosan resin, Laminaria japonica Aresch juice, Arsenic, removal


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