• Title/Summary/Keyword: Benzyl pyridyl ketone

Search Result 2, Processing Time 0.016 seconds

Determination of Acidic Drug with ISEs Using Ternary Complex of Metal-di-2-pyridyl Ketone Oxime-acidic Drug as Ion-Exchanger (이온교환체로서 금속-디-2-피리딜케톤옥심-산성의약품 3원 착물을 이용한 산성의약품의 정량)

  • 안문규;오원정;이언경;이순영;이재윤;정문모;허문회
    • YAKHAK HOEJI
    • /
    • v.46 no.5
    • /
    • pp.320-323
    • /
    • 2002

  • A method for the determination of acidic drug, mefenamic acid and ibuprofen with ion-selective electrode(ISE) using Fe(II)-di-2-pyridyl ketone oxime complex as a counter ion were developed. Benzyl-2-nitrophenyl ether(BNPE) plasticized membrane was more selective and sensitive than the other tested membranes. The acidic drug selective electrode exhibits a linear response for 10$^{-2}$ M 510$^{-5}$ M of acidic drugs, mefenamic acid and ibuprofen with a slope of -55.9 and -56.3 mV/dec. in borate buffer solution (pH 8.9). Potentiometric selectivity measurements revealed negligible interferences from aromatic and aliphatic carboxylic acid salts. The electrodes were found to be useful for the direct determination of mefenamic acid and ibuprofen in pharmaceutical preparations.

  • PDF KSCI