Sample Weight: 1 g
Samples are digested with nitric acid (HNO3) and hydrochloric acid (HCl) in a water bath for 1.5 hours and submitted to Inductively Coupled Plasma-Optical Emission Spectroscopy (ICP-OES)ICP-OES for mercury analysis.
The reporting limit range for high concentration mercury in solid samples is 10 ppm to 10,000 ppm.
Data will be deemed acceptable if recovery of mercury is ±20% at five times the Lower Limit of Determination (LOD) and the calculated percent Relative Standard Deviation (RSD) of duplicate samples is no greater than 20%.
Central Mineral and Environmental Resources Science Center