HPLC-Fluorescent Analysis of Memantine: An Investigation on Fluorescent Derivative Formation

Table 1

Wavenumbers for the functional groups of memantine, DBD-COCl and the fluorescent derivative.

Functional group	Wavenumber (cm^−1)
	Memantine	DBD-COCl	Fluorescent derivative
C–N	1039	1039	1041
SO2		1375	1411
N–H bending	1640–1540
C=O of amide			1644
C=O of ketone		1772
sp^3 C–H stretching	<3000	<3000	<3000
sp^2 C–H stretching		>3000	>3000
N–H stretching	3500–3000