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The combustion characteristic for medicinal herbs and extracts sample ((A) RH and RHWSE, (B) CO and COASE, (C) SA and SAASE) were determined by thermal Analysis. They were placed in a crucible under a constant flow of simulated air (60 mL·min-1, N2: O2 = 4:1), and the temperature of the crucible was increased at 5°C·min-1 (heating rate) from room temperature to 600°C.
