Method Interfering ion KpotD,B KpotD,B KpotD,B KpotD,B
ICPE   (10 mg NaTPB) IPVC (7.5 mg NaTPB) IPVC (7.5 mg of PMA) IPVC  (7.5 mg PTA)
MPM Glucose 1.7 x10-4 5.1 x10-4 1.2 x10-4 9.3 x10-6
Fructose 4.6 x10-4 7.0 x10-4 1.6 x10-4 4.6 x10-5
Maltose 5.0 x10-4 3.8 x10-4 1.1 x10-4 5.4 x10-5
Lactose 4.4 x10-4 8.3 x10-4 1.9 x10-4 4.4 x10-5
Sucrose 3.6 x10-4 9.7 x10-4 2.8 x10-4 6.3 x10-5
Starch 8.2 x10-5 2.2 x10-4 2.1 x10-4 4.9 x10-6
Glycine 1.3 x10-4 7.6 x10-4 3.9 x10-4 4.2 x10-5
SSM Na+ 5.6 x10-5 5.0 x10-6 5.9 x10-6 2.9 x10-6
Cd2+ 2.7 x10-4 1.2 x10-4 1.6 x10-4 6.4 x10-5
K+ 3.8 x10-5 3.9 x10-6 4.7 x10-6 1.8 x10-6
Mg2+ 2.6 x10-4 1.1 x10-4 1.4 x10-4 4.7 x10-5
Zn2+ 3.2 x10-4 1.4 x10-4 1.7 x10-4 6.7 x10-5
Ni2+ 1.7 x10-4 1.5 x10-4 1.8 x10-4 8.5 x10-5
Mn2+ 2.9 x10-4 1.0 x10-4 1.3 x10-4 5.3 x10-5
Ba2+ 2.1 x10-4 2.8 x10-4 2.0 x10-4 4.5 x10-5
Fe 3+ 1.2 x10-4 2.7 x10-4 3.6 x10-4 1.3 x10-4
Pb2+ 1.1 x10-4 1.5 x10-4 1.5 x10-4 7.3 x10-5
Al3+ 8.9 x10-4 1.9 x10-4 3.4 x10-4 1.8 x10-4
Cr3+ 1.1 x10-4 2.7 x10-4 3.9 x10-4 3.3 x10-4
Cu2+ 5.6 x10-5 7.3 x10-4 1.1 x10-4 7.9 x10-5
Table 5: Selectivity coefficients values for ICPE and IPVC electrodes.