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| Title: | Differential pulse polarographic determination of tin in alloys and environmental samples after preconcentration with the ion pair of 2-nitroso-1-naphthol-4-sulfonic acid and tetradecyldimethylbenzylammonium chloride onto microcrystalline naphthalene or by column method |
| Authors: | Taher, Mohammad Ali
Puri, Bal Krishan |
| Keywords: | Differential pulse polarography
Tin determination
Standard alloys
Environmental samples
2-Nitroso-1-naphthol-4 sulfonic acid
Tetradecyldimethylbenzylammonium chloride
Tetradecyldimethylbenzylammonium chloride
Microcrystalline naphthalene |
| Issue Date: | 1999 |
| Citation: | Talanta, 48(2), 355–362 |
| Abstract: | A highly selective, sensitive, rapid and economical differential pulse polarographic method has been developed for the determination of trace amount of tin in various standard alloys and environmental samples after adsorption of its 2-nitroso-1-naphthol-4-sulfonic acid- etradecyldimethylbenzylammonium chloride on microcrystalline naphthalene in the pH range of 8.7–10.6. After filtration, the solid mass is shaken with 8–10 ml of 3.5 M hydrochloric acid and tin is determined by differential pulse polarography (DPP). Tin can alternatively be quantitatively adsorbed on 2-nitroso-1-naphthol-4-sulfonic acid-tetradecyldimethylbenzylammonium-naphthalene adsorbent packed in a column
and determined similarly. The detection limit is 0.15 mg ml-1 (signal to noise ratio-2) and the linearity is maintained
in the concentration range 0.5–220 mg ml-1 with a correlation coefficient of 0.9995 and relative standard deviation of 90.88%. Characterization of the electroactive process included an examinatio... |
| URI: | http://eprint.iitd.ac.in/dspace/handle/2074/634 |
| Appears in Collections: | Chemistry
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