钡及其可溶性化合物是一类有毒化合物，其毒性随其在水中的溶解度的增加而加强，工作场所可溶性钡的测定方法国内未见报道。采用石墨炉原子吸收光谱仪对其进行测定是可行的，但仪器在基层单位不普及，用火焰原子吸收光谱仪测定灵敏度较低。为此，我们对其分光光度测定方法进行 Barium and its soluble compounds are a class of toxic compounds, the toxicity of which increases with the increase of its solubility in water. The method of determination of soluble barium in the workplace has not been reported in China. Graphite Furnace Atomic Absorption Spectrometer is feasible, but the instrument is not popular in the grass-roots units, the flame atomic absorption spectrometry determination of low sensitivity. To do this, we performed its spectrophotometric method