4.7 Article

Screen-printed anion-exchange solid-phase extraction: A new strategy for point-of-care determination of angiotensin receptor blockers

期刊

TALANTA
卷 222, 期 -, 页码 -

出版社

ELSEVIER
DOI: 10.1016/j.talanta.2020.121518

关键词

Ion exchange solid phase extraction; Screen-printed electrode; Nylon 6/polyaniline; Nanofibers; Angiotensin II receptor antagonists

向作者/读者索取更多资源

A miniaturized system of anion exchange solid phase extraction based on a screen-printed electrode was developed for extraction and quantitative determination of anionic analytes. The system was evaluated using angiotensin receptor antagonists as model compounds, showing good recovery rates in human blood plasma samples.
A miniaturized system of anion exchange solid phase extraction (SPE) based on a screen-printed electrode was developed as a point of care (POC) device for extraction and quantitative determination of anionic analytes. Nylon 6/polyaniline nanofibers were fabricated by electrospinning and in-situ oxidative polymerization techniques coated on a screen-printed working electrode and characterized by Fourier-transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) methods. The effects of essential parameters such as desorption conditions, pH of the sample solution, adsorption voltage, adsorption time, and salt concentration on the performance of the method were investigated. To evaluate the performance of the system, angiotensin.. receptor antagonists, including valsartan, losartan, and irbesartan, were selected as model compounds and analyzed by HPLC/UV after extraction. The limits of detection and quantification were ranging between 0.4 and 0.9 mu g L-1 and 1.3-3.0 mu g L-1, respectively. The linear dynamic range for Losartan, Irbesartan, and Valsartan was 2-400, 4-1000, and 2-400 mu g L-1, respectively, with R-2 > 0.991. Finally, the method was applied for the determination of ARA-IIs in human blood plasma samples, and relative recoveries in the range of 89.0-107.8% with relative standard deviation (RSDs (<= 8.9% were obtained.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据