铁(Ⅲ)-4,7-二苯基-邻菲啰啉络合物光还原的研究及其应用

Photoreduction of Iron(Ⅲ)-Bathophenanthroline Complex and Its Application

实验发现,在散射光中Fe(Ⅱ)-BPT络合物能发生显著的光还原反应,产生Fe(Ⅰ)-BPT络合物,上述反应在NaH_2PO_4-Na_2HPO_4缓冲液中进行缓慢。此法可用于铁矿中铁的价态分析。分析结果与标准值一致。

The experimental results indicate that a remarkable photoreduction of Fe(Ⅲ) bathophenanthroline (BPT) complex occurs under diffused light, but the formation of Fe(Ⅱ)-BPT is prevented in Na_2HPO4-NaH_2PO_4 buffer solution (pH 6.0). The method has been applied to the analysis of the iron valence for ironstone. Analytical result is in accordance with standard value.