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Abstract

The separation of divalent metal ion mixtures has been investigated chromatographically on columns of either gel or sol forms of alginate polyelectrolyte. Separation was obtained in the form of narrow sharp zones for the metal ions. Ion exchange selectivity indicated that Cu²⁺ ions were most strongly retained among the divalent metal ions studied. The factors which affect the ion exchange selectivity, such as the strength of chelation and the mobility and radii of the metal ions, are discussed. The selectivity coefficient for the separation of a mixture of Cu²⁺ and Co²⁺ ions on columns of calcium alginate gel or sodium alginate sol was determined and found to be 1.9 ± 0.1 in both ion exchangers at 25°C.

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References

[1] H. Determann , Angew. Chem. Ind. Ed., 3, 608-608 (1964).

[2] S. Hjerten and R. Moshach , Anal. Chem., 109-109 (1962).

[3] J.C. Moore , J. Phys. Sci., 2A, 835-835 (1964).

[4] D. Cozzi , P.G. Disideri , L. Lepri and V. Coas , J. Chromatogr., 40, 138-138 (1969); 43, 463 (1969).

[5] L. Lepri , P.G. Desideri , V. Coas and D. Cozzi , J.Chromatogr., 49, 239-239 (1970; 64, 271 (1972).

[6] G. Raspi and M.G. Zappeli , Ann. Chim., 58, 922-922 (1968).

[7] D. Cozzi , P.G. Desideri , L. Lepri and G. Gantelli , J. Chromatogr., 35, 369-369 (1968).

[8] A. Haugh and O.Smidsrød , Nature, 215, 757-757 (1967).

[9] R.M. Hassan , M.H.Wahdan and A. Hassan , Eur. Polym. J., 24, 281-281 (1988); R.M. Hassan, S.A. El-Shatoury, M.A. Mousa and A. Hassan, Eur. Polym. j., 24, 1173 (1988).

10.

[10] R.M. Hassan , M. Th.Makhlouf , A.M. Summan and A. Award , Eur. Polym. J., 25, 993-933 (1989).

11.

[11] A.I. Vogel , Textbook of Quantitative Inorganic Analysis, 4th Edn, Longmans, London (1986).

12.

[12] A. Haugh and O. Smidsrød , Acta. Chem. Scand., 19, 341-341 (1965).

13.

[13] R.M. Hassan , A.M. Summinan , M.K. Hassan and S.A. EI-Shatoury , Eur. Polym. J., 25, 1209-1209 (1989).

14.

[14] R.M. Hassan , J.Mater. Sci., in press.

15.

[15] A. Awad , F. EI-Cheikh and A. Shaker , Coll. Polym. Sci., 258, 1244-1244 (1980).

16.

[16] T. Takahashi, Y. Ishiwari and H. Shirai, Kogyo Kegaku Zasshi, Jpn, 63, 1025 (1960).

17.

[17] A.F. Cotton and G. Wilkinson , Advanced Inorganic Chemistry, 3rd Edn, John Wiley, New York (1972).

18.

[18] B.E. Conway , Electrochemical Data, Elsevier, London (1952).

19.

[19] I. Brewer and E. Brackett , Chem. Rev., 61, 425-425 (1961); R.T. Sanderson, Chemical Bonds and Bond Energy, 2nd Edn, Academic Press, New York (1976).

20.

[20] S. Olav , Acta Ctem. Scand., 19, 329-329 (1965); R. Schweiger, Koll. Z., 47, 196 (1964).

21.

[21] H. Thiele and C. Anderson , Koll. Z., 76, 140-140 (1955).

22.

[22] R.M. Hassan , Acta. Polym., in press.

23.

[23] E. Heftmann , Chromatography, 3rd Edn, Van Nostrand Reinhold Company, New York (1975); F. Hellferich, Ion Exchange, McGraw Hill, New York (1962).

Alginate Polyelectrolyte Ionotropic Gels-XII. Chromatographic Separation of Divalent Transition Metal Ions using Alginates as Ion Exchangers

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