Fig. 4

Effect of acetate buffer pH on the reaction of eosin (2.5 × 10⁻⁵ M) with 1500 ng mL⁻¹ ALC for the spectrofluorometric method (-▲-) and eosin (1 × 10⁻³ M) with 6 µg mL⁻¹ ALC for the spectrophotometric method (-■-)