Microdetermination of Methenamine in the Presence of Formaldehyde by Solid Phase Spectrophotometry
Figure 5
Stability of absorbance of BCG in solid phase on duration time. Conditions: 1.26 μg mL−1 of MT; [BCG] = 10−4 M; pH = 4.0; 70 mg Sephadex LH-20; stirring time 5 min; sample volume 10 mL (air as reference).
