当前位置: X-MOL 学术Talanta › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Electrochemical investigation and determination of procaterol hydrochloride on poly(glutamic acid)/carboxyl functionalized multiwalled carbon nanotubes/polyvinyl alcohol modified glassy carbon electrode
Talanta ( IF 5.6 ) Pub Date : 2017-06-21 , DOI: 10.1016/j.talanta.2017.06.047
Dexian Kong , Lili Jiang , Yijun Liu , Zeming Wang , Libin Han , Rixin Lv , Jiandi Lin , Chun-Hua Lu , Yuwu Chi , Guonan Chen

Poly(glutamic acid) (P-GLU)/carboxyl functionalized multiwalled carbon nanotubes (MWCNTs-COOH)/polyvinyl alcohol (PVA) modified glassy carbon electrode (GCE) has been successfully prepared and the electrochemical behavior of procaterol hydrochloride (ProH) was studied. The results show that the as-prepared modified electrode exhibits a good electrocatalytic property towards the oxidation of ProH in 0.2 M phosphate buffer solution (PBS) (pH 6.0) due to the enhanced oxidation peak current at ~+0.59 V. Under optimal reaction conditions, the oxidation peak current of ProH is proportional to its concentration in the linear dynamic ranges of 0.060 − 8.0 μM (R = 0.9974), with a detection limit of 8.0 × 10−9 M. Finally, this method was efficiently used for the determination of ProH in tablets and human urine with recoveries of 88.5~98.7% and 89.2 ~ 108.0%, respectively.



中文翻译:

聚谷氨酸/羧基官能化多壁碳纳米管/聚乙烯醇修饰玻碳电极上盐酸丙卡特罗的电化学研究与测定

成功制备了聚谷氨酸(P-GLU)/羧基官能化多壁碳纳米管(MWCNTs-COOH)/聚乙烯醇(PVA)修饰玻碳电极(GCE),并研究了盐酸丙卡特罗(ProH)的电化学行为。结果表明,由于〜+ 0.59 V处的氧化峰电流增加,因此制备的修饰电极对0.2 M磷酸盐缓冲溶液(PBS)(pH 6.0)中ProH的氧化表现出良好的电催化性能。 ,ProH的氧化峰电流在0.060-8.0μM (R = 0.9974)的线性动态范围内与浓度成正比,检出限为8.0×10 -9 M.最后,该方法可有效用于片剂和人尿中ProH的测定,回收率分别为88.5〜98.7%和89.2〜108.0%。

更新日期:2017-06-21
down
wechat
bug