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Hydrazones have been studied by liquid-liquid extraction towards the s-metal ions (Li<jats:sup>+<\/jats:sup>, Na<jats:sup>+<\/jats:sup>, and K<jats:sup>+<\/jats:sup>) and d-metal ions (Cu<jats:sup>2+<\/jats:sup> and Cr<jats:sup>3+<\/jats:sup>) from aqueous phase to organic phase. The effect of chloroform and dichloromethane as organic solvents over the metal chlorides extraction was investigated at 25 \u00b1 0.1\u00b0C by using flame atomic absorption. We found differences between the two solvents in extraction selectivity.<\/jats:p>","DOI":"10.5402\/2012\/208284","type":"journal-article","created":{"date-parts":[[2012,2,8]],"date-time":"2012-02-08T21:31:45Z","timestamp":1328736705000},"page":"1-8","source":"Crossref","is-referenced-by-count":11,"title":["Synthesis of Macrocyclic Bis-Hydrazone and Their Use in Metal Cations Extraction"],"prefix":"10.5402","volume":"2012","author":[{"given":"Farouk","family":"Kandil","sequence":"first","affiliation":[{"name":"Department of Chemistry, Faculty of  Science, University of  Damascus, Damascus, Syria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mohamad Khaled","family":"Chebani","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Faculty of  Science, University of  Damascus, Damascus, Syria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wail","family":"Al Zoubi","sequence":"additional","affiliation":[{"name":"Department of 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