ZIF-67/g-C₃N₄-Modified Electrode for Simultaneous Voltammetric Determination of Uric Acid and Acetaminophen with Cetyltrimethylammonium Bromide as Discriminating Agent

Table 1

Tolerance limits of interferents, (5·10⁻⁷ M URA or 5·10⁻⁷ M URA in 0.1 M BR-BS pH 9 and 150 μM CTAB).

Interfering substances	(μM)
	URA (0.5 μM)	RE (%)	ACE (0.5 μM)	RE (%)
Glucose	75	−4.55	75	4.9
Sucrose	75	−4.30	75	4.99
Oxalate	75	−4.79	150	4.85
NaNO3	150	−4.92	150	4.86
CaCl2	100	2.49	100	−3.40
K2SO4	150	4.2	150	−3.1
(NH4)2SO4	100	−3.26	100	4.38
KHCO3	150	−4.32	150	3.19