Table 2.

Recovery study.

Metals	Standard recovery % (n = 5)	Spike recovery % (n = 3)
As	96–103	83–106
Cd	101–104	103–129
Cr	104–110	89–119
Cu	97–109	84–111
Fe	96–104	79–91
Hg	105–111	98–115
Mn	93–105	90–97
Ni	96–100	96
Pb	98–101	93–118
Zn	95–103	118