富氧空气-乙炔火焰原子吸收光谱法测定石煤矿中的钒

method for determination of trace vanadium in coal by air mixed oxygen-acetylene flame atomic absorption spectrometry is proposed. The sample was digested by acid at 180℃ for 24 hours and then was introduced into the flame absorption spectrometry. The determination limit at the optimized conditions was 0.12mg/L. The experiment of spiked recovery was carried out in order to validate the method. The recovery was from 97% to 99% and RSD was 1.1%