Spectrophotometric Determination of Praseodymium by 1,4- Dihydroxyanthraquinone after its Selective Separation from Rosetta Monazite Rare Earth Concentrate by Solvent Extraction

Authors

  • Abdel Fattah N. A,  Sadeek A. S, Ali B. H, Abdo, A. A, Weheish, H. L.a Independent researchers

DOI:

https://doi.org/10.26389/AJSRP.A27416

Keywords:

Spectrophotometric, Determination, Praseodymium, Dihydroxyanthraquinone, Rosetta Monazite, Selective Separation

Abstract

A rare earths concentrate of Rosetta monazite assays about 44, 23, 16.94 and 5.91 % for Ce, La, Nd and Pr respectively. Separation of cerium by air oxidation at 200oC. Selective separation of Pr by D2EHPA at pH1 followed by a sensitive spectrophotometric method which described for the determination of praseodymium (Pr) with l,4-dihydroxyanthraquinone .
The calibration curve was linear from   0.1 to 12 µgml -1 praseodymium. The influences of various parameters and reaction conditions for maximum colour development were investigated.
The relative standard deviation for determination of 1 µgml-1 praseodymium has found to be 1.3 after 5 repeated determinations; percent error 5.02%, molar absorptivity (ε) was 1.23x106M-1 cm-1and detection limit was 0.1µgml-1.
The method for determination of praseodymium showed good accuracy and selectivity.

Author Biography

  • Abdel Fattah N. A,  Sadeek A. S, Ali B. H, Abdo, A. A, Weheish, H. L.a, Independent researchers

    Independent researchers

References

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Published

2015-09-30

Issue

Vol. 1 No. 2 (2015)

Section

Content

License

Copyright (c) 2015 المجلة العربية للعلوم ونشر الأبحاث

How to Cite

AbdelFattahN.A, SadeekA.S,AliB.H,Abdo,A.A,Weheish,H.L.a. (2015). Spectrophotometric Determination of Praseodymium by 1,4- Dihydroxyanthraquinone after its Selective Separation from Rosetta Monazite Rare Earth Concentrate by Solvent Extraction. Arab Journal for Sciences and Research Publishing, 1(2), 25-12. https://doi.org/10.26389/AJSRP.A27416