Element impurities

Samples of MND

RUDDM 0 - 125 (d₅₀ = 49.6 nm)

RUDDM 200 - 500 (d₅₀ = 270 nm)

Fe, mkg/mg

4.6 ± 0.3

3.1 ± 0.3

Cu, mkg/mg

1.3 ± 0.2

0.6 ± 0.2