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首页> 外文期刊>Electroanalysis >FIA determination of paracetamol in pharmaceutical drugs by using gold electrodes modified with a 3-mercaptopropionic acid monolayer
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FIA determination of paracetamol in pharmaceutical drugs by using gold electrodes modified with a 3-mercaptopropionic acid monolayer

机译：用3-巯基丙酸单层修饰的金电极FIA测定药品中的扑热息痛

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摘要

A flow injection analysis (FIA) method for the determination of paracetamol in pharmaceutical drugs using a gold electrode modified with a self-assembled monolayer (SAM) of 3-mercaptopropionic acid is described. At optimized experimental conditions the dynamic concentration range was 0.15 to 15.0 mg L-1 with a detection limit of 0.2 mu g mL(-1) (S/N = 3). The repeatability of current responses for injections of 10 mu mol L-1 paracetamol was evaluated to be 3.2% (n = 30) and the analytical frequency was 180 h(-1). The lifetime of the modified electrode was found to be 15 days. The results obtained by using the proposed amperometric method for paracetamol determination in four different drug samples compared well with those found by spectrophotometry.
机译：描述了一种流动注射分析（FIA）方法，该方法使用3-巯基丙酸的自组装单层（SAM）修饰的金电极测定药物中的扑热息痛。在优化的实验条件下，动态浓度范围为0.15至15.0 mg L-1，检测极限为0.2μg mL（-1）（S / N = 3）。电流响应在10μmol L-1对乙酰氨基酚注射中的重复性评估为3.2％（n = 30），分析频率为180 h（-1）。发现改性电极的寿命为15天。与四种分光光度法相比，采用拟议的安培法测定扑热息痛的方法在四种不同药物样品中的测定结果良好。

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