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文献用液相色谱法富集了天然水中痕量钼和钪。本文测定了在硫酸和柠檬酸及抗坏血酸介质中锆和铁在阴离子交换树脂Amberlit CG400上的分配常数。据此应用强制流动液相色谱法,使0.5微克锆从1～2克铁中定量富集并消除了大量铁的干扰,拟订的方法适用于测定纯铁中ppm级的锆。 一、仪器和试剂 72型分光光度计; 强制流动液相色谱分离装置;
The literature enriched trace amounts of molybdenum and scandium in natural water by liquid chromatography. In this paper, the distribution constants of zirconium and iron on anion exchange resin Amberlit CG400 in sulfuric acid, citric acid and ascorbic acid medium were determined. According to this method, forced flow liquid chromatography was used to quantitatively enrich 0.5 μg of zirconium from 1 to 2 g of iron and eliminate a large amount of iron interference. The proposed method is suitable for the determination of ppm grade zirconium in pure iron. First, instruments and reagents 72 spectrophotometer; forced mobile liquid chromatography separation device;