Analytical application of ion selective electrode in the determination of magnesium in real samples

In this study, a novel method is used for the determination of magnesium in food samples. The method involves the use of a potentiometric magnesium ion selective electrode. Graphite coated ion – selective electrode with the composition of 33.0% PVC, 57.0% o - NPOE, 6.0% NaTPB, 2.0 % MWNT and 2.0% 2-hydroxymethyl-15-crown-5 was used to determine the amount of magnesium in spinach and broccoli. The results obtained were compared by ICPAES method.