Spectroscopic and Microscopic Characterization of Volcanic Ash from Puyehue-(Chile) Eruption: Preliminary Approach for the Application in the Arsenic Removal

<table>SEM micrographs of samples (a) PM, (b) PT, (c) ST, (d) ST<sub>W</sub>, and (e) RB. PM: volcanic pyroclastic mixture; PT: pumiceous type; ST: scoria type; ST<sub>W</sub>: washed scoria type; RB: rounded block.</table>

Journal of Spectroscopy

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Figure 1: Spectroscopic and Microscopic Characterization of Volcanic Ash from Puyehue-(Chile) Eruption: Preliminary Approach for the Application in the Arsenic Removal 

Figure 1 | Spectroscopic and Microscopic Characterization of Volcanic Ash from Puyehue-(Chile) Eruption: Preliminary Approach for the Application in the Arsenic Removal 