Sample Size: 100 mL
Samples are concentrated by evaporation, followed by a short, hot digestion in aqua regia to dissolve remaining metal salts. The final solution is analyzed by Inductively Coupled Plasma - Mass Spectrometry (ICP-MS).
|Element||Concentration (low)||Concentration (high)|
|Au, Gold||0.01 ppb||100 ppm|
|Ir, Iridium||0.1 ppb||100 ppm|
|Pd, Palladium||0.01 ppb||100 ppm|
|Pt, Platinum||0.05 ppb||100 ppm|
|Re, Rhenium||0.1 ppb||100 ppm|
|Rh, Rhodium||0.1 ppb||100 ppm|
|Ru, Ruthenium||1 ppb||100 ppm|
Data will be deemed acceptable if recovery of each element is ±20% at five times the Lower Limit of Determination (LOD) and the calculated Relative Standard Deviation (RSD) of duplicate samples is no greater than 20%.
Central Mineral and Environmental Resources Science Center