Distributions of arseniselenium in coal mines

Abstract: The contents of arsenic and selenium in 33 coals collected from the main coal mines in northeastem, northem and eastem China were determined by flow injection-hydride generation and non-dispersion atomic fluorescence spectrometry (HGAFS). The concentrations of As in the northeast region are relatively higher with the values>100ug/g; in the east they are lower with values <100 ug/g .The contents of Se in these three areas are the opposite ,most of them from the northeast mines are <1 ug/g and increase as the mine location advances south where the average contents are >5 ug/g . AF-610D2色谱－原子荧光联用仪