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New Sorbent from Agro-industrial Waste and its Potential Use in 17β-Estradiol and 17α-Ethynylestradiol Removal
EP21768
Poster Title: New Sorbent from Agro-industrial Waste and its Potential Use in 17β-Estradiol and 17α-Ethynylestradiol Removal
Submitted on 25 Mar 2014
Author(s): Suzimara Rovani*, Éder C. Lima, Renato Cataluña, Andreia N. Fernandes
Affiliations: Federal University of Rio Grande do Sul (UFRGS)
Poster Views: 1,737
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Poster Information
Abstract: In recent years, the increasing introduction of new chemicals in the market, and the development of more accurate analytical methods, added a variety of endocrine disruptors compounds (EDC) [1]. Even though they are found in very low concentrations (range of ng L-1) there is still a lack of knowledge about long-term risks of EDC for non-target organisms as well as for human health [2]. Usually, the current methods are not adequate for direct determination of target compounds at low concentration level in complex matrix samples. There is a need for developing new reliable analytical methods, which will enable a rapid, sensitive and selective determination of EDC in environmental samples. Therefore, a sample pretreatment step prior to chromatographic analysis is necessary for pre-concentrating the target analytes [3]. In order to solve this problem, there is a demand for new adsorbents materials for solid-phase extraction (SPE) which may improve analyte recovery, sorptive capacity and selectivity. In this context, this study aimed to develop a new SPE sorbent from agroindustrial waste for removal of 17beta-estradiol (E2) and 17alpha-ethynylestradiol (EE2) from aqueous solution. The adsorption kinetic for E2 and EE2 in the first hours reached 95% of removal for both hormones. All experiments showed the potential of the agroindustrial sorbent as a new material for SPE devices. Summary: In recent years, the increasing introduction of new chemicals in the market, and the development of more accurate analytical methods, added a variety of endocrine disruptors compounds (EDC). Even though they are found in very low concentrations (range of ng L-1) there is still a lack of knowledge about long-term risks of EDC for non-target organisms as well as for human health.References: [1] S.D. Richardson, Analytical Chemistry. 80 (2008) 4373.
[2] R. P. Schwarzenbach, et al., Science. 313 (2006) 1072.
[3] Q. Xu, et al., Chromatographia. 71 (2010) 487.
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