Elemental Impurities Testing: A Primer on USP <232> and USP <233>

Elemental impurities (or heavy metals if you will) can be toxic for humans when they are not metabolized by the body and accumulate in the soft tissues.  Depending on the elemental impurities in question, toxicity can occur at levels just above naturally occurring background levels.  This means that consumption of pharmaceuticals and food supplements [...]