SPECTROPHOTOMETRIC DETERMINATION OF PALLADIUM, TELLURIUM AND IRIDIUM AFTER EXTRACTION WITH 2-MERCAPTO-4-METHYL-5-PHENYLAZOPYRIMIDINE
Kumar, A
| HERO ID | 1195729 |
|---|---|
| In Press | No |
| Year | 1995 |
| Title | SPECTROPHOTOMETRIC DETERMINATION OF PALLADIUM, TELLURIUM AND IRIDIUM AFTER EXTRACTION WITH 2-MERCAPTO-4-METHYL-5-PHENYLAZOPYRIMIDINE |
| Authors | Kumar, A |
| Journal | Analytical Sciences |
| Volume | 11 |
| Issue | 2 |
| Page Numbers | 281-284 |
| Abstract | A spectrophotometric method for the determination of palladium, tellurium and iridium from nitric acid media after extraction of their 2-mercapto-4-methyl-5-phenylazopyrimidine complexes into molten naphthalene has been develop and possible synergistic effects have been investigated. Dioxane, methanol, ethanol, l-propanol, acetone and acetonitrile are used as the organic component of the mixed (polar) phase; the maximum enhancement is obtained with acetonitrile. Solid naphthalene containing the metal complex is separated by filtration and dissolved in chloroform; trace amounts of these metals are determined spectrophotometricaly. Beer's law is obeyed in the following concentration ranges: Pd, 7.0-84.0 mu g; Te, 10.0-125.0 mu g and Ir, 6.0-90.0 mu g/ 10 ml of the final solution. The molar absorptivities (dm(3) mol(-1) cm(-1)) and Sandell's sensitivities (mu g cm(-2)) were calculated: Pd(II)=2.05X10(4) and 0.0052, Te(IV)=1.84X10(4) and 0.0069 and Ir(III)=0.95X10(4) and 0.020, respectively. Ten replicate analyses containing 12.5 mu g of Pd(II), 21.0 mu g of Te(IV) and 85.0 mu g of Ir(III) gave mean absorbances of 0.241, 0.302 and 0.420 with relative standard deviations of 0.53, 0.36 and 0.85%, respectively. The interference of various ions was studied, and conditions were developed for the determination of these metals in certain alloys and synthetic mixtures.< |
| Doi | 10.2116/analsci.11.281 |
| Wosid | WOS:A1995QR79900018 |
| Url | https://www.proquest.com/scholarly-journals/spectrophotometric-determination-palladium/docview/1448516092/se-2?accountid=171501 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Source: Web of Science A1995QR79900018 |
| Is Public | Yes |
| Language Text | English |
| Keyword | EXTRACTION-SPECTROPHOTOMETRY; PALLADIUM; TELLURIUM; IRIDIUM; 2-MERCAPTO-4-METHYL-5-PHENYLAZOPYRIMIDINE |
| Is Qa | No |