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Parameters obtained from the surface of MS immersed in 1 M HCl solution without and with 1000 ppm DPH after 4 h using AFM analysis.
| Sample | Rp–v (µm) | Ra (nm) | Hm (nm) | Rq (nm) |
|---|---|---|---|---|
| Blank | 2.043 | 238.8 | 891.3 | 290.8 |
| DPH (1000 ppm) | 1.655 | 182.4 | 705.5 | 240.6 |
