火焰原子吸收光谱法测定工业硫酸中的汞

文章提出采用空气-乙炔火焰原子吸收光谱法测定工业硫酸中高含量的汞。以硫酸铅溶液除硫酸根，高锰酸钾将汞氧化为Hg（Ⅱ）；控制试样硫酸的稀释倍率，使溶液中的共存成分不干扰测定；标准叫收率99．3％～100．6％，RDS〈1％；方法具有干扰少、试样处理简单、分析速度快等优点，较适宜测定工业硫酸中0．1g／L以上的汞。

Determination of Mercury in the Industrial Sulfate with Air-Acetylene Flame in Atomic Absorption Spectrometry

This paper put forward the air- acetylene Air- Acetylene Flame in Atomic Absorption Spectrometry to determine the high content mercury in the industrial sulfate. In addition to lead nitrate solution sulfate, mercury will be oxided by potassium permanganate into Hg（ Ⅱ ） ; Control samples of diluted industrial sulfate ratio, the coexistence of the solution components do not interfere with the determination; Standard recovery 99.3% - 100.6 %, RDS 〈 1%. The method is less interference, sample handling simple, the advantages speed, which is more appropriate for the determination of Industrial sulfate in the 0.1 g/L of mercury above.