Figure 9.

Effects of potentially interfering substances: (0) non-interference; (1) K⁺, 25 mM; (2) Na⁺, 25 mM; (3) Mg²⁺, 25 mM; (4) NH${}_4^{+}$, 25 mM; (5) NO${}_3^{-}$, 25 mM; (6) SO${}_4^{\mathrm{2-}}$, 25 mM; (7) CO${}_3^{\mathrm{2-}}$, 25 mM; (8) glucose, 25 mM; (9) lactose, 25 mM; (10) starch, 25 mM; (11) oxalic acid, 25 mM; (12) glycine, 25 mM; (13) l-histidine, 25 mM; (14) ascorbic acid, 6.25 mM; (15) β-cyclodextrine, 6.25 mM; (16) ronidazole, 625 μM; (17) secnidazole, 625 μM. Conditions: FCNs, 500 μL; PBS, 0.2 M, pH 7.0; MNZ, 125.00 μΜ.