What Does PPMA Stand For?

PPMA stands for Parts Per Million Atomic

PPMA, or Parts Per Million Atomic, is a unit of measurement that expresses the concentration of a substance in terms of parts per million, specifically at the atomic level. It quantifies the amount of a particular element or compound in relation to one million total atoms, providing a precise way to assess the presence of trace elements in various scientific and industrial contexts, including environmental monitoring, material science, and pharmaceuticals.