[Determination of selenium in Kaoliang seed-skin by extraction FAAS]

This paper reports the determination of selenium by FAAS, extracted with APDC and MIBK, Being extracted and enriched, it not only overcomes the shortcomings, being difficult to determine selenium for the low efficiency of atomization, but also eliminates the disturbance in determination of selenium from the stabilizer Cu2+ and the other metal ions in the sample. The method was applied to the determination of selenium in the husk of Kaoliang and had a good effect. The method is simple and rapid with good precision and accuracy. The relative standard deviation is 4.18%. The recovery is 97.8%.