Limit detection of heavy metal (Pb,Cd,As,Hg) by using ICP-OES in Infant Formula

Hello, Does anyone here experience to determine heavy metals (esp Pb,Cd,As,Hg) by ICP-OES in infant formula?Does anyone know is ICP-OES able to determine those elements until its meet low detection (below 0.01 ppm)?Thank you in advance

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