纳米氧化铁溶胶中铁含量测定方法的研究

COMPARATIVE STUDY ON THE METHODS FOR THE DETERMINATION OF IRON IN NANO-IRON OXIDE SOL

在测定纳米氧化铁溶胶中铁含量时,EDTA滴定法和光度法的可靠性和重现性均可与原子吸收光谱法相比拟,所测得数据为优化合成纳米氧化铁溶胶条件提供了可靠简便的方法。

The EDTA titrimetric method, the sulfosalicylic acid-photometric method and the AAS method were applied to the determination of iron in nano-iron oxide sol. As shown by the analytical results obtained by these method, the EDTA titration method and the SSA-photometric method had their accuracy and precision comparable to the AAS method, and were suitable to be used as control method in routine analysis to inspect the quality of nano-iron oxide sol and as a guide for the optimization of the process of the preparation.