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首页> 外文期刊>RSC Advances >Determination of sparfloxacin and besifloxacin hydrochlorides using gold nanoparticles modified carbon paste electrode in micellar medium
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Determination of sparfloxacin and besifloxacin hydrochlorides using gold nanoparticles modified carbon paste electrode in micellar medium

机译：用金纳米颗粒改性胶束介质测定盐酸氟苯吡啶和盐酸苯甲酸苯甲酸盐盐酸盐的测定

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A gold nanoparticles modified carbon paste electrode (AuCPE) was used to study the electrochemical behavior of sparfloxacin HCl (SPAR) and besifloxacin HCl (BESI) using cyclic and differential pulse voltammetry modes in the presence of micellar medium. Effect of different surfactants on peak current was studied in Britton–Robinson buffer solution of pH 2. Sodium dodecyl sulphate is the optimum surfactant based on the enhancement of the peak current. The modified electrode shows highly sensitive sensing giving an excellent response for SPAR and BESI. The peak current varied linearly over the concentration ranges from 1.1 × 10 ~(?7) mol L ~(?1) to 3.3 × 10 ~(?6) mol L ~(?1) and from 2.2 × 10 ~(?6) mol L ~(?1) to 5.5 × 10 ~(?5) mol L ~(?1) with determination coefficients of 0.9976 and 0.9984 in case of SPAR and BESI, respectively. The recoveries and the relative standard deviations were found in the following ranges: 99.97–101.4% and 0.63–1.48% for SPAR and 99.89–101.1% and 0.85–1.76% for BESI. The detections limits were 2.87 × 10 ~(?8) and 3.76 × 10 ~(?7) mol L ~(?1) for SPAR and BESI, respectively. The proposed method has been successfully applied to determine SPAR and BESI in biological fluids.
机译：用于在胶束介质存在下使用循环和差脉冲伏安法模式，使用金纳米颗粒改性的碳糊电极（AUCPE）研究Sparfloxacin HCl（Spar）和BeaIfloxacin HCl（BESI）的电化学行为。在PH 2的Britton-Robinson缓冲溶液中研究了不同表面活性剂对峰值电流的影响。十二烷基硫酸钠是基于峰值电流的增强的最佳表面活性剂。改性电极显示出高度敏感的感测，给出了对翼梁和贝迪的极好反应。峰值电流在浓度范围内线性变化，范围为1.1×10〜（？7）摩尔L〜（α1）至3.3×10〜（Δ6）mol l〜（α1）和2.2×10〜（？6 ）Mol L〜（α1）至5.5×10〜（Δ5）摩尔L〜（α1），测定系数分别为0.9976和0.9984，在翼肌和腹部的情况下。在以下范围内发现回收率和相对标准偏差：SPAR的99.97-101.4％和0.63-1.48％，而BESI的99.89-101.1％和0.85-1.76％。检测限值分别为2.87×10〜（？8）和3.76×10〜（Δ7）摩尔L〜（α1），分别用于SPAR和BES。所提出的方法已成功应用于在生物流体中测定血管和贝基。

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