Microdetermination of Methenamine in the Presence of Formaldehyde by Solid Phase Spectrophotometry
Figure 3
Influence of pH on the absorbance of BCG in solid phase. Conditions: 1.26 μg mL−1 of MT; [BCG] = 10−4 M; 70 mg Sephadex LH-20; sample volume 10 mL (air as reference).
