**15. Ion exchanger Metalfix Chelamine**

The studies of the use of the ion exchanger Metalfix Chelamine of tetraethylenepentamine ligands (1,4,7,10,13 – pentaazatridecane) in the process of recovery, concentration and separation of platinum metal ions, gold and their accompanying elements from the environ‐ mental samples, anodic sludges from the electrorefining of copper ores, spent car exhaust gas catalysts, etc. [93–98].
