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Atomic Absorption Spectroscopy Reveals Anomalous Transfer of Heavy Metal across a Water/1,2-DCE Interface
- 1.0549119 - ÚFCH JH 2022 RIV PT eng J - Článek v odborném periodiku
Silver, Barry Richard
Atomic Absorption Spectroscopy Reveals Anomalous Transfer of Heavy Metal across a Water/1,2-DCE Interface.
Portugaliae Electrochimica Acta. Roč. 39, č. 6 (2021), s. 415-420. ISSN 0872-1904. E-ISSN 0872-1904
Grant CEP: GA ČR(CZ) GA17-09980S
Institucionální podpora: RVO:61388955
Klíčová slova: complex-formation * extraction * ions * water * liquid/liquid * extraction * metal * non-polarizable and ITIES (interface between two immiscible electrolyte solutions)
Obor OECD: Physical chemistry
Způsob publikování: Open access
Atomic absorption spectroscopy (AAS) of samples taken from the organic phase of a water/1,2-dichloroethane (1,2-DCE) interfacial electrochemical cell, rendered non-polarizable by the tetraphenylarsonium common-ion, revealed significant transfer of heavy metal from the aqueous phase. Heavy metal concentration found within 1,2-DCE cannot be explained via ion pair formation between the metallic species and the commonion, nor by ion pair formation between the metallic species and the hydrophobic anion of the organic phase. Results suggest that metal may have been anomalously transferred into 1,2-DCE within water-in-oil droplets formed by spontaneous emulsification of the interfacial region.
Trvalý link: http://hdl.handle.net/11104/0325133
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