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http://nopr.niscpr.res.in/handle/123456789/20719| Title: | Poly(vinyl chloride) membrane containing zirconium(IV)selenomolybdate inorganic ion exchanger as dysprosium(III)ion selective electrode |
| Authors: | Gupta, A P Verma, G L Agarwal, Himanshu |
| Issue Date: | Aug-2003 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Poly(vinyl chloride) supported tetracycline sorbed zirconium(IV) selenomolybdate chelating inorganic exchange membrane has been employed for the determination of dysprosium(III) ion. The membrane electrode shows a Nernstain response for Dy(III) over a wide concentration range (l.0×10-1 M - 5×10-5 M) with a slope of 18.3 mV per decade of concentration. The detection limit is 3.8×10-5 M. The electrode is found to possess adequate stability and specific selectivity for Dy(III) over the other closely trivalent lanthanide metal ions with a response time of ~15 s. The sensor can also be used in partially non-aqueous medium, e.g., acetone/alcohol having 5- 10% (v/v) contents. Its working pH range is 2-9. It is successfully applied for the direct determination of Dy3+ in meta borate rock and as an indicator electrode in potentiometric titrations of dysprosium ion with 2-4 % experimental error. |
| Page(s): | 1910-1913 |
| ISSN: | 0975-0975(Online); 0376-4710(Print) |
| Appears in Collections: | IJC-A Vol.42A(08) [August 2003] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCA 42A(8) 1910-1913.pdf | 925.02 kB | Adobe PDF | View/Open |
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