Interference check standards for ICP-OES

Interference check standards

1000 mg/L: Sb

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Interference check solution 1

10,000 mg/L: Cl; 2000 mg/L: C; 1000 mg/L: Al, Ca, Fe, K, Mg, Na, P, S; 20 mg/L: Mo, Ti

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Interference check solution 2

2% HNO₃

10 mg/L: Ag, As, Cd, Co, Cr, Cu, Mn, Ni, Zn

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Analytes C solution

2 mg/L: Ag, As, Ba, Be, Cd, Co, Cr, Cu, Hg*, Mn, Ni, Pb, Sb, Se, Tl, V, Zn

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Interference check standard 5

5% HNO₃

6,000 mg/L: Ca; 5,000 mg/L: Fe; 3,000 mg/L: Mg; 1,200 mg/L: Al; 1,000 mg/L: Na

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Interferents A solution

5% HNO₃

5,000 mg/L: Al, Ca, Mg; 2,000 mg/L: Fe

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Analytes B solution

5% HNO₃

100 mg/L: Cd, Ni, Zn; 60 mg/L: Sb; 50 mg/L: Ba, Be, Co, Cr, Cu, Mn, V; 20 mg/L: Ag; 10 mg/L: As, Tl; 5 mg/L: Pb, Se;

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Alternate interferents A solution

5% HNO₃

1,000 mg/L: Cr, Cu, Mn,Ni, Ti, V

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Alternate analytes B solution

5% HNO₃

100 mg/L: Al, As, B, Mo, Na, Sb, Se, Tl; 10 mg/L: Ca, Fe, Mg, Si

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