Fig. 6

Densitogram of forced degraded samples. a 0.1N HCl-treated REM for 30 min at 70 °C and b 3% H2O2-treated REM for 30 min at 70 °C
Densitogram of forced degraded samples. a 0.1N HCl-treated REM for 30 min at 70 °C and b 3% H2O2-treated REM for 30 min at 70 °C