Development of an Electroanalytical Method for the Determination of Rifabutin and Rifaximin as Drugs From Antibiotic Class
No Thumbnail Available
Date
2023
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Bu çalışma, rifabutin (RFB) tayini için anodik/katodik ön işlem görmüş ve rifaksimin (RFX) tayini için anodik ön işlem görmüş bor katkılı elmas (BDD) elektrot yüzeyinde dönüşümlü ve kare dalga voltametrisi tekniklerinin kullanarak elektroanalitik bir incelemeyi sunmaktadır. Pik akımı ve potansiyelin pH, tarama hızı, birikim parametreleri ve diğer deneysel değişkenlere bağımlılığı incelenmiştir. RFB'nin anodik pik akımları, seçilen destek elektrolitine katyonik yüzey aktif madde eklenerek büyük ölçüde artırılmıştır. SW voltametri tekniğinden yararlanılarak Britton-Robinson tamponunda (pH 7.0) RFB tayini için 0.1 ile 10.0 μg mL-1 (1.18×10-7-1.18×10-5 M) (Ag/AgCl'ye karşı) derişim aralığında doğrusallık elde edildi. Gözlenebilirlik sınırı 0.026 μg mL-1 (3.07×10-8 M) olarak bulunmuştur. RFX tayini için SW voltametri tekniği kullanılarak, +0.56 V'da (Ag/AgCl'ye karşı) 0.1 M HNO3 çözeltisinde iyi bir doğrusal yanıt elde edildi. Doğrusal aralık, 0.5 ile 20.0 μg mL-1 (6.36×10-7-2.54×10-5 M) değerleri arasında ve gözlenebilme sınırı 0.14 μg mL-1 (1.78×10-7 M) olarak elde edildi. Önerilen yöntem RFX ve RFB'nin farmasötik formülasyonlarda tayinine başarılı bir şekilde uygulanmıştır. Anahtar kelimeler: Antibiyotik, Bor katkılı elmas elektrot, Farmasötik formülasyon, Rifabutin, Rifaksimin, Voltametrik tayin
This study presents an electroanalytical examination using a non-modified boron-doped diamond (BDD) electrode surface, which is anodically/cathodically pretreated for Rifabutin (RFB) and anodically pretreated for the quantification of Rifaximin (RFX) utilizing cyclic as well as square-wave (SW) voltammetric techniques. The relationship between peak current, potential, and various experimental parameters, such as scan rate, pH, accumulation parameters, and other variables, was investigated. Adding a cationic surfactant to the selected non-reactive electrolyte significantly increased the anodic peak currents of the RFB. Utilizing the SW voltammetric technique, a linear relationship was established for the evaluation of RFB in Britton-Robinsin buffer (pH 7.0) within the dynamic range of 0.1 to 10.0 μg mL-1 (1.18×10-7-1.18×10-5 M) (vs. Ag/AgCl). The determined detection limit for RFB was 0.026 μg mL-1 (3.07×10-8 M). Applying the SW voltammetric technique for RFX sensing, a favorable linear response was attained in a 0.1 M HNO3 solution at +0.56 V (vs. Ag/AgCl). The linear range was obtained from 0.5 to 20.0 μg mL-1 (6.36×10-7-2.54×10-5 M) via a limit of detection 0.14 μg mL-1 (1.78×10-7 M). Ultimately, the developed approach has been perfectly utilized to the quantification of RFX and RFB in drug formulations. Keywords: Antibiotic, Boron-doped diamond, Pharmaceutical formulation, Rifabutin, Rifaximin, Voltammetric determination
This study presents an electroanalytical examination using a non-modified boron-doped diamond (BDD) electrode surface, which is anodically/cathodically pretreated for Rifabutin (RFB) and anodically pretreated for the quantification of Rifaximin (RFX) utilizing cyclic as well as square-wave (SW) voltammetric techniques. The relationship between peak current, potential, and various experimental parameters, such as scan rate, pH, accumulation parameters, and other variables, was investigated. Adding a cationic surfactant to the selected non-reactive electrolyte significantly increased the anodic peak currents of the RFB. Utilizing the SW voltammetric technique, a linear relationship was established for the evaluation of RFB in Britton-Robinsin buffer (pH 7.0) within the dynamic range of 0.1 to 10.0 μg mL-1 (1.18×10-7-1.18×10-5 M) (vs. Ag/AgCl). The determined detection limit for RFB was 0.026 μg mL-1 (3.07×10-8 M). Applying the SW voltammetric technique for RFX sensing, a favorable linear response was attained in a 0.1 M HNO3 solution at +0.56 V (vs. Ag/AgCl). The linear range was obtained from 0.5 to 20.0 μg mL-1 (6.36×10-7-2.54×10-5 M) via a limit of detection 0.14 μg mL-1 (1.78×10-7 M). Ultimately, the developed approach has been perfectly utilized to the quantification of RFX and RFB in drug formulations. Keywords: Antibiotic, Boron-doped diamond, Pharmaceutical formulation, Rifabutin, Rifaximin, Voltammetric determination
Description
Keywords
Kimya, Chemistry
Turkish CoHE Thesis Center URL
WoS Q
Scopus Q
Source
Volume
Issue
Start Page
End Page
129