Table 2.

Logarithmic selectivity coefficients (K ^pot _{PRO, interferent}) of PEDT-modified CPE.

Interferent	log (K pot PRO, interferent)a
Furosemide	− 1.16
Cl−	− 2.78
Br−	− 2.53
Carbonate	− 2.67
Phosphate	− 2.86
Sulphate	− 2.82
Glucose	− 3.31
Starch	− 3.27
Sodium glycolate	− 2.88
Magnesium stearate	− 2.94
Microcrystalline cellulose	− 3.34

^aAverage of three determinations.