Abstract
Chinese gum rosin were digested by microwave-assisted sample digestion, and then the metal and semimetal elements in it were detected by inductive coupled plasma optical emission spectrometer (ICP-OES). Most metal and semimetal elements mass fractions in gum rosin are less than 5.0mg/kg, among which mass fractions of Al, Ca, Fe, Mg, Na are relatively higher. Some metal and semimetal elements in gum rosin may influence auto-oxidative rate to bring about color changing.
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