Element speciation - ALS Laboratory Group

Element speciation

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Analyses

Arsenic speciation

Sample type	Sample requirement	LOQ
Solids	5 g	2 ng/g
Water	50 ml	0.1 µg/l
Species included: As(V); As(III)

Methyl mercury

Sample type	Sample requirement	LOR
Natural water	100 ml	0.03 ng/l
Sediment, sludge, soil	1 g dry weight	0.05 ng/g
Fish, shellfish	1 g dry weight	0.2 ng/g
Plant material	0.5 g dry weight	0.1 ng/g
Blood, plasma, serum	2 ml	30 ng/l