Figure 9From: Determining the degradation efficiency and mechanisms of ethyl violet using HPLC-PDA-ESI-MS and GC-MS HPLC chromatogram of intermediates at pH 6 (EV, 0.01 gL -1 ), 36 h of reaction with Zn-foil, recorded at (a) 580 nm, (b) 350 nm, and (c) 300 nm, impurities were marked with star. Back to article page