Transition Metal Complexes of Naproxen: Synthesis, Characterization, Forced Degradation Studies, and Analytical Method Verification

Table 4

Retention times of the complexes and their ligands.

Compound	Retention time () (min)
Naproxen (ligand)	4.442
Naproxen-Copper complex (N-Cu)	4.353
Naproxen-Cobalt complex (N-Co)	4.336
Naproxen-Iron complex (N-Fe)	4.388
Naproxen-Silver complex (N-Ag)	4.424
Naproxen-Zinc complex (N-Zn)	4.388