Analytical considerations associated with implementing M2+ correction factors to address false positives on As and Se within U.S. EPA method 200.8
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Rare earth elements (REE) can produce M2+ ions in ICP-MS and 150Nd2+, 150Sm2+, and 156Gd2+ can produce false positives on 75As and 78Se. Alternative instrumental tuning conditions, that utilize lower He flows within the collision cell, reduce these false posit... ...
