Abstract:Purpose To establish a method for the determination of boron in soybean and rolls of dried bean milk cream by graphite furnace atomic absorption spectrometry (GFAAS). Method The samples were pretreated by microwave digestion with HNO3 and H2O2 or by dried ashing after alkalified with saturated Ca(OH)2. A mixture of calcium nitrate(10 mg/ml)- ammonium nitrate(20mg/ml)- citric acid(20 mg/ml) was used as a chemical modifier. Treated samples were determined by GFAAS. Result A good linear relationship was observed in the range of 0 ~ 1 μg/ml, r = 0.9996, and the detection limit of the method was 0.01 709 μg/ml. The RSD was from 3.56% to 6.45%, and the recovery was in the range from 87.20 % to 93.70%. Conclusion The method was simple, and its repeatability, sensitivity and accuracy could meet the requirements of analysis. It was applicable to the determination of boron in soybean and rolls of dried bean milk cream.