| Sr.
No. |
Alloy |
Platinum (IV)
taken, μg |
Platinum (IV)
*Found by
method in μg |
Average,
%
recovery |
Average,
%
recovery |
| 1. |
Pt-Pd a -Rh a catalyst on
alumina |
150 |
149.2 |
99.4 |
0.6 |
| 2 |
Pt-Rh a catalyst on
alumina |
150 |
149.5 |
99.6 |
0.4 |
| 3 |
Pt-Pd a catalyst on
alumina |
150 |
149.8 |
99.8 |
0.2 |
| 4 |
Pt
catalyst on
alumina |
300 |
299.5 |
99.8 |
0.2 |
amasked with 20 mg tartrate.
*Average of five determinations
Composition of synthetic mixtures in percentage
1. Pt, 0.03-0.25; Rh, 0.005-0.03
2. Pt, 0.03-0.15; Pd, 0.02-0.12
3. Pt, 0.03-0.20; Pd, 0.03-0.150; Rh, 0.015-0.05
4. Pt, 0.3-0.8 |
