建立了硝酸-双氧水体系消解、石墨炉原子吸收法测定空气中铋的方法。采用抗坏血酸和磷酸二氢铵作混合基体改进剂,热解涂层石墨管,塞曼扣背景。此方法对测定环境空气中铋的灵敏度、准确度都有很大的提高,方法的最低检出浓度为1.00μg/L,当采样体积为150L,铋最低检出质量浓度为0.0007mg/m3。 A nitric acid - hydrogen peroxide system digestion, graphite furnace atomic absorption method for the determination of bismuth in air. Using ascorbic acid and ammonium dihydrogen phosphate as a mixed matrix modifier, pyrolytic coated graphite tube, Zeeman buckle background. The sensitivity and accuracy of this method for the determination of bismuth in ambient air are greatly improved. The minimum detection concentration of this method is 1.00 μg / L. When the sampling volume is 150 L, the minimum detectable concentration of bismuth is 0.0007 mg / m3.