石墨炉双原子分子吸收光谱法测定痕量溴的研究

Determination of Trace Amounts of Bromine by Molecular Absorption Spectrometry With Graphite Furnace

本文测定了AgBr、AlBr、CuBr、InBr、PbBr、TlBr分子吸收光谱。通过比较,选择其中灵敏度最高的TlBr分子,在343.1nm波长对石墨炉TlBr分子吸收光谱测定溴进行了研究。在最佳测定条件下,方法灵敏度达到4.5×10^(-9)/0.0044A。

In this work, the molecular absorption spectra of AgBr, AlBr, CuBr, InBr, PbBr and TlBr were studied. Among these molecules, TlBr was chosen to determine bromine, since it is most sensitive. In the optimized conditions, th0 sensitivity of TlBr molecular absorption is 4.5×10^(-9)gBr/0.0044A.