AB 101-200

 Print this page Email this information to a colleague Back
AB-181 Potentiometric titration of aluminum and magnesium in the same solution  
Potentiometric titration of aluminum and magnesium in the same solution

Mixtures of aluminum and magnesium ions (digestion solutions of alloys, antacids, etc.) can be analyzed automatically by potentiometric titration. After addition of 1,2-diaminocyclohexanetetraacetic acid (DCTA) and complex formation, the DCTA excess is back-titrated with copper(II) sulfate solution. The ion-selective copper electrode is used as indicator electrode. First the aluminum is determined in acidic solution, then the magnesium in alkaline solution.


German:  AB_181_4_d.pdf (126 KB)
English:  AB_181_4_e.pdf (121 KB)
French:  AB_181_4_f.pdf (131 KB)

Industry
Pharmaceutical Industry > Pharmaceuticals
 
Methods
Titration > Potentiometric titration > Other potentiometric titrations
   Potentiometric titration of aluminum and magnesium in the same solution