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PRECIOUS METALS ANALYSIS
Gold analysis
|
Code |
Analyte |
Description |
Sample weight |
Range |
|
*FA-AAS |
Gold Au |
Lead fire assay and ААS |
30 g |
0.01 - 14.0 mg/kg |
|
FA-grav |
Gold Au |
Lead fire assay -Gravimetric finish |
30 g |
1.0 mg/kg-more |
|
FA |
Gold Au |
Metallic screen fire assay |
30 g |
0.01 mg/kg - more |
|
FA-grav |
Gold purity |
In Bullion sample by lead fire assay -Gravimetric finish |
200 mg |
|
|
AAS-Au |
Gold Au |
By ashing, aqua regia digestion-AAS |
20 g |
0.1 - 8.0 mg/kg |
Silver analysis
|
Code |
Analyte |
Description |
Sample weight |
Range
|
|
*AAS-10 |
Silver Ag |
Aqua regia digestion- AAS |
5 g |
1.0 - 200 mg/kg |
|
FA-grav |
Silver Ag |
Lead fire assay -Gravimetric finish |
30 g |
10.0 mg/kg - more |
Platinum, Palladium analysis
|
Code |
Analyte |
Description |
Sample weight |
Range |
|
*FA-AAS |
Platinum Pt |
Lead fire assay-ААS (Graphite furnace) |
30 g |
0.015 - 0.1 mg/kg |
|
*FA-AAS |
Palladium Pd |
Lead fire assay-ААS (Graphite furnace) |
30 g |
0.003 - 0.02 mg/kg |
|
A-AAS |
Palladium Pd |
Lead fire assay-ААS (flame) |
30 g |
1.0 - 8.0 mg/kg |
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