Fig. 7From: In Situ Immobilization on the Silica Gel Surface and Adsorption Capacity of Poly[N-(4-carboxyphenyl)methacrylamide] on Toxic Metal IonsScanning electron microscopy photo of the surface of silica gel, in situ modified by poly[N-(4-carboxyphenyl)methacrylamide] (a without grinding of the sample or b after grinding of a sample of silica gel)Back to article page