Selective separation of cerium from lanthanides by extractive photometry using HDBE as novel reagent

• Autorzy: Bambardekar Y. , Singare P.U. , Lokhande R.S.
• Języki publikacji: EN

Abstrakty

EN

Striking similarities in properties of lanthanides make their separation a difficult task. Development of highly selective analytical reagent hexane-2,5-dione-bis(ethylenediamine) HDBE that forms brown coloured complex with Ce(IV) which is quantitatively extracted into xylene at pH 6.4. Transfer of extracted complex to organic phase is very fast (<1min.). Optimum concentration of reagent required for complexation and full colour development is very low (0.8 cm3 of 0.1 % HDBE). Absorption maximum exhibited at 518 nm. Beer’s law is obeyed in the detectable range 0.3-4.0 ppm. The molar absorptivity and Sandell’s sensitivity values are 0.421•104 dm3• mol-1•cm-1 and 0.017 μg•cm-2 respectively. The present method is time honoured, permits selective separation of cerium from associated lanthanones using HDBE as a novel complexing agent.

Słowa kluczowe

EN

lanthanides; HDBE; xylene; extracted complex; Beer’s law; molar absorptivity; Sandell sensitivity

• Wydawca: Przedsiębiorstwo Wydawnictw Naukowych "DARWIN"
• Czasopismo: International Letters of Chemistry, Physics and Astronomy
• Rocznik: 2013
• Tom: Vol. 7, iss. 2
• Strony: 144--150
• Opis fizyczny: Bibliogr. 10 poz., rys., tab.

Twórcy

autor

Bambardekar Y.

• C.H.M. College, University of Mumbai, Ulhasnagar, Mumbai 421003, India

autor

Singare P.U.

• Department of Chemistry, Bhavan’s College, Munshi Nagar, Andheri (West), Mumbai 400058, India

autor

Lokhande R.S.

• Department of Chemistry, University of Mumbai, Vidyanagari, Santacruz, Mumbai 400098, India

Bibliografia

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