Heavy Metals Meeting Book_MYM2023

ICP-MS – Technical challenges – Analysis 2/2

Atomic Mass

Element

Polyatomic interferences

Isobaric interferences

ArCl , CoO, Ar 2 H, ArK, CaO 2 , CaS , NaCAr , CPO 2 , CaC l CoNH, NiN, NiNH ( 40 Ar 35 Cl ) AsAr , MoO, MoOH, SeCl , SeS , ZrOH, BrS, ZnAr, K 2 O 2 H ( 94 Zr 16 O 1 H, 95 Mo 16 O )

75

As

1 5 0 Sm + + , 150 Nd ++

Interferences

111

Cd

Need to use collision or reaction cell to remove main polyatomic interferences

1 1 4 Sn

MoO, MoOH, SeCl , SeS , SeAr , BrCl , BrS, RuO ( 98 Mo 16 O)

114 201 202

Cd Hg Hg

WO WO

PtO, RhRh

206

Pb

IrO

207 208

Pb Pb

PtO, PbH, Hg C

67

2023.03.17

AOAC MidYear Meeting - S . Dubascoux