US EPA Method 7473
Method 7473 is designed for the determination of
mercury in solids, aqueous samples, and digested
solutions in both the laboratory and field
environments. The stability of the instruments is
such that field and lab results are statistically
identical. Due to the severe toxicity of mercury and
to its pervasive pre-RCA mismanage-ment, the EPA envisions widespread use of this
technology...
From ‘An Update of the Current Status of the
RCRA Methods Development Program’ by
Barry Lesnik and Ollie Fordham, US EPA,
Office of Solid Waste, Methods Team
(5307W), doc #4BLWP804.98.