Table 4

Interferent^b	MPM^a	Interferent^b	MPM^a
K⁺	2.88	Cr³⁺	3.33
Na⁺	2.95	Maltose	3.52
NH₄⁺	2.65	Glucose	3.50
Ba²⁺	3.21	Lactose	3.54
Cu²⁺	3.20	Urea	3.23
Co²⁺	3.11	Ascorbic acid	3.30
Ni²⁺	3.19	Aspirin	1.15
Mn²⁺	2.56	L-Lysine	3.34
Mg²⁺	2.89	L-cystine	3.20
Zn²⁺	2.67	L-Glycine	3.19
Fe³⁺	3.27	L-Theronine	3.44

^aEach value is the average of three determinations. ^bAll interferents ions are in the form of 0.5 M chloride solution

Table 4: Selectivity coefficient values for

CLO-ST/CMCPE.