Determination of Mefenamic Acid with Fe(II)-Dipyridyl-Mefenamic Acid Ternary Complex as Ion-exchagner
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2001, v.14 no.1, pp.59-63
Nam, Su Ja
Moon, Hyun Sook
Lee, Mi Na
Jung, Moon Mo
Hur, Moon Hye
Ahn, Moon Kyu
Nam,
S. J., Moon,
H. S., Lee,
M. N., Jung,
M. M., Hur,
M. H., &
Ahn,
M.
K.
(2001). Determination of Mefenamic Acid with Fe(II)-Dipyridyl-Mefenamic Acid Ternary Complex as Ion-exchagner. , 14(1), 59-63.
Abstract
A PVC membrane electrodes based on Fe(II)-dipyridyl-mefenamic acid ternary complex as ion exchanger were prepared using o-nitrophenyl octyl ether as a plasticizer. The 2,2'-dipyridyl, 4,4'-dipyridyl and 4,4'-dipyridyl-2,2'-dipyridyl were used as dipyridyl derivative ligand. The electrode dxhibits a fast stable and linear response for $10^{-5}-10^{-3}mol/L$ mefenamate with an anionic slope of -55.98, -49.47, -59.35mV/decade in pH 8.9 borate buffer solution respectively. Potentiometric selectivity measurements revealed negligible interferences from aromatic and aliphatic carboxylic acid salts.
- keywords
-
dipyridyl,
ternary complex,
mefenamic acid