Figure 4From: Nano- and microsized zeolites as a perspective material for potentiometric biosensors creation Steady-state responses of urease biosensors without and with different zeolites in bioselective membranes. (LTA-4 (1), LTA-9 (2), LTA-22 (3), BEA-30 (4), NH4-BEA-30 (5), H+-BEA-30 (6), BEA-50 (7), NH4-BEA-50 (8), and H+-BEA-50 (9)). Concentration of urea - 1 mM. Zeolite concentration - 5%. Measurements were conducted in 5 mM phosphate buffer, pH 7.2.Back to article page