International Journal of Analytical Chemistry / 2018 / Article / Fig 2

Research Article

Development of a Solid-Phase Extraction (SPE) Cartridge Based on Chitosan-Metal Oxide Nanoparticles (Ch-MO NPs) for Extraction of Pesticides from Water and Determination by HPLC

Figure 2

Electron microscopy images of Ch-MO NPs. (a), (b) The SEM of Ch-CuO NPs and Ch-ZnO NPs, respectively. (c), (d) The TEM of Ch-CuO NPs and Ch-ZnO NPs, respectively. Scale bar for SEM measurements was 1 μm and magnification x20000 at 20 Kv. Scale bar for TEM measurements was 100 nm and magnification x40000 at 20 Kv.
(a)
(b)
(c)
(d)

Article of the Year Award: Outstanding research contributions of 2020, as selected by our Chief Editors. Read the winning articles.