The determination conditions of vanadium in workplace air by graphite furnace atomic absorption method were determined by selecting digestion solution,matrix modifier and ashing and atomization temperature,and verified by standard recovery and precision.After the optimization,the detection range of vanadium was 0～100 μg/L,the detection limit was 2 μg/L,the minimum detection concentration was 0.000 3 mg/m3,the relative standard deviation was 0.70%～1.14%,and the recovery rate was 96.4%～103.9%.The results show that the optimized graphite furnace atomic absorption spectrometry can determine vanadium and its compounds in workplace air quickly and accurately.
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