This standard specifies the determination method of copper in food. This standard applies to the determination of copper in food. The detection limit of this method: the flame atomization method is 1.0 mg/kg; the graphite furnace atomization method is 0.1 mg/kg; the colorimetric method is 2.5 mg/kg.
GB/T 5009.13-2003 history
2017GB 5009.13-2017 National Food Safety Standard Determination of Copper in Food