Microdetermination of Methenamine in the Presence of Formaldehyde by Solid Phase Spectrophotometry

Table 3

Effect of formaldehyde on the determination of 1.26 μg mL⁻¹ of methenamine.

Content (μg mL^−1)	Absorbance of solid phase^a
0	1.680
3.2	1.680
6.4	1.680

^aAir as reference.