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The mild oxidation of Shenmu char powder (SCP) with aqueous hydrogen peroxide (AHPO)–acetic anhydride (AAH) was carried out under different conditions, including volume-to-mass ratio of AAH to SCP (AAH/SCP), temperature, volume ratio of AHPO to AAH (AHPO/AAH), and time. Each reaction mixture was filtrated and then extracted with methanol to afford residue and extract. The optimal conditions were determined...
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