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Determination of Mineral Elements in Red Fuji Apples from Yunnan

Six mineral elements including Ca, Fe, Zn, Cu, Mn, Mg in Red Fuji apples from Zhaotong of Yunnan province were determined by flame atomic absorption spectrometry(FAAS). The results showed that Red Fuji apples contained abundant Ca, Fe, Mg mineral elements beneficial for human health. The concentrations of mineral elements in apple skin were higher than those in apple pulp. The concentration of Ca in skin was 11.64 times than those in pulp. The detection limit of six mineral elements were 0.02 ~2.40 μg/m L. The recovery rates were 97.48% ~102.42%. The relative standard deviation(RSDs)were 0.51%~2.21%(n=6). The results of determination were accurate and reliable.