Ahmadi Elahe, Gholivand Mohammad Bagher, Karami Changiz
Department of Chemistry, Kermanshah Branch, Islamic Azad University Kermanshah Iran.
Analytical Chemistry Department, Chemistry Faculty, Razi University Kermanshah Iran
RSC Adv. 2020 Jun 19;10(39):23457-23465. doi: 10.1039/d0ra03587d. eCollection 2020 Jun 16.
In the present study, an enzyme-less amperometric sensor based on Nafion (NF) and a LaNiO (LNO) nanocomposite was constructed for HO detection. LNO from the perovskite group was mixed with NF as an effective solubilizing and stabilizing agent that was used as a novel modifier for modification of the glassy carbon electrode (GCE). The designed sensor showed a desirable electrocatalytic response toward HO reduction. The calibration curve revealed two linear portions in the concentration ranges of 0.2-50 μM and 50-3240 μM, and the detection limit was 0.035 μM. The accuracy of the interference-free sensor was checked by recovery analysis in serum samples.
在本研究中，构建了一种基于Nafion（NF）和LaNiO（LNO）纳米复合材料的无酶安培传感器用于过氧化氢（HO）检测。来自钙钛矿族的LNO与NF混合，作为一种有效的增溶剂和稳定剂，用作修饰玻碳电极（GCE）的新型修饰剂。所设计的传感器对HO还原表现出理想的电催化响应。校准曲线在0.2 - 50 μM和50 - 3240 μM的浓度范围内显示出两个线性部分，检测限为0.035 μM。通过血清样品中的回收率分析检查了无干扰传感器的准确性。
