This standard specifies the determination of calcium in food by atomic absorption spectrophotometry and titration. This standard applies to the determination of calcium in various foods. The detection limit of atomic absorption spectrophotometry in this standard is 0.1 μg, and the linear range is 0.5 μg to 2.5 μg; the linear range of titration method is 5 μg to 50 μg.
GB/T 5009.92-2003 history
2016GB 5009.92-2016 National Food Safety Standard Determination of Calcium in Food