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The relative affinities of these chelating ligands for copper(II), zinc(II), cadmium(II), and lead(II) by liquid-liquid extraction were found to be in the order copper(II)&amp;gt; zinc(II) &amp;gt; cadmium(II) &amp;gt; lead(II). The ligands L1 and L2 showed binding efficiencies ranging from 78%\u201397% for copper(II), 75%\u201391% for zinc(II), 76%\u201392% for cadmium(II), and 59%\u201367% for lead(II). The extraction protocol was successfully applied to sewage effluent.<\/jats:p>","DOI":"10.2166\/wst.2022.164","type":"journal-article","created":{"date-parts":[[2022,5,12]],"date-time":"2022-05-12T14:02:06Z","timestamp":1652364126000},"page":"2993-3001","update-policy":"https:\/\/doi.org\/10.2166\/iwapcrossmarkpolicypage","source":"Crossref","is-referenced-by-count":13,"title":["Liquid-liquid extraction of copper(II), zinc(II), cadmium(II), and lead(II) from aqueous solution and sewage effluent using phenoxy-amino ligands"],"prefix":"10.2166","volume":"85","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9532-8022","authenticated-orcid":false,"given":"George S.","family":"Nyamato","sequence":"first","affiliation":[{"name":"a Department of Physical Sciences, University of Embu, P.O Box 6-60100, Embu, Kenya"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kelvin","family":"Wambugu","sequence":"additional","affiliation":[{"name":"a Department of Physical Sciences, 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