Fig. 2From: Determination of Sudan red contaminants at trace level from water samples by magnetic solid-phase extraction using Fe@NiAl-layered double hydroxide coupled with HPLCa TEM and EDS images of Fe@NiAl-LDHs nanoparticles; b XRD patterns of (a) Fe@NiAl-LDHs, (b) Fe0, and (c) NiAl-LDHsBack to article page