Enantioseparation of Ofloxacin by Ligand Exchange Capillary Electrophoresis Using L-Histidine Modified Nanoparticles as Chiral Ligand
نویسندگان
چکیده
L-histidin modifiye nanopartiküllerin kiral ligand ve Cu ’nin merkez iyon olarak kullanılması ile yeni bir kiral ligand değişim kapiler elektroforez yöntemi geliştirildi. İlk olarak, MAH ve EDMA’nın polimerizasyonu ile polimerik nanopartiküller hazırlandı. Nanopartiküller atomik kuvvet mikroskobu (AFM), FTIR ve elemental analiz ile karakterize edildi. Nanopartiküllerin elementel analizi sonucu polimerde 0.2 mmol/g azot olduğu bulundu. Elektrolit çözeltisi içerisinde nanopartiküller içeren kapiler elektroforez sistemi yalancı kapiler elektrokromatografi yöntemi olarak bilinir. Bu yaklaşım ile ofloksasinin enantiyoayırımı, ligand değişim kapiler elektroforez ile yapıldı. Kiral grup içeren nanopartiküller farklı şekilde ofloksasinin yapısal enantiomerleri ile etkileşim gösterdi. Kiral ayırmayı etkileyen faktörler incelendi. Ofloksasin için enantiyoayırma koşulları %70 ACN, 10 mM CuSO 4 , 40 mM (NH 4 ) 2 SO 4 (pH 4.7) ve 30 mg/mL nanopartikül olarak optimize edildi. Bu yöntem ile ofloksasinin enantiyoayrılması gerçekleştirildi ve ofloksasin tabletleri ile uygulması yapıldı. Anahtar Kelimeler Ligand değişimi, Kapiler elektroforez, ofloksasin, polimerik nanopartiküller A B S T R AC T
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