当前位置: X-MOL 学术Surf. Interfaces › 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.)
Eco-friendly and bio-waste based hydroxyapatite/reduced graphene oxide hybrid material for synergic electrocatalytic detection of dopamine and study of its simultaneous performance with acetaminophen and uric acid
Surfaces and Interfaces ( IF 5.7 ) Pub Date : 2021-04-20 , DOI: 10.1016/j.surfin.2021.101145
T. Venu Gopal , T. Madhusudana Reddy , P. Shaikshavali , G. Venkataprasad

Herein, we report an innovative fabrication of agglomerate eco-friendly and bio-waste based hydroxyapatite/reduced graphene oxide hybrid material modified carbon paste electrode (BHA/rGO/CPE) for the detection of dopamine (DA). In the present exertion, environmental bio-waste eggshells were utilized to synthesize the hydroxyapatite (BHA) material. Further, BHA/rGO hybrid material was synthesized via a simple disperser assisted sonochemical approach and characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM), High-resolution transmission electron microscopy (HRTEM) with energy-dispersive X-ray spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS) analysis. Under the optimal conditions, the electrochemical results were attained by the cyclic voltammetry, differential pulse voltammetry, and electrochemical impedance spectroscopy. BHA/rGO/CPE displayed good sensitivity over the other electrodes. The enhanced results were due to the combination of the multi-adsorption capability of BHA and superior conductivity nature of rGO. The limit of detection and quantification of dopamine were found to be as 0.39, 1.32 µM and 0.63, 2.10 µM respectively, for lower (5 to 100 µM) and higher (120 to 310 µM) linear dynamic ranges. BHA/rGO/CPE was also demonstrated for the simultaneous determination of dopamine (DA), acetaminophen (AC) and uric acid (UA) with no interference among the analyte molecules. Further, the discussed sensor had great potential application in determining DA in real sample analysis.



中文翻译:

环保和生物废物基的羟基磷灰石/还原氧化石墨烯杂化材料,用于多巴胺的协同电催化检测并研究其与对乙酰氨基酚和尿酸的同时性能

在本文中,我们报告了一种创新的团聚体环保和生物废物基羟基磷灰石/还原氧化石墨烯杂化材料改性碳糊电极(BHA / rGO / CPE)的制造方法,用于检测多巴胺(DA)。在本发明中,利用环境生物废物蛋壳来合成羟基磷灰石(BHA)材料。此外,通过简单的分散器辅助声化学方法合成了BHA / rGO杂化材料,并通过傅里叶变换红外光谱(FTIR),X射线衍射(XRD),场发射扫描电子显微镜(FESEM),高分辨率透射电子显微镜进行了表征(HRTEM)具有能量色散X射线光谱(EDS)和X射线光电子光谱(XPS)分析。在最佳条件下,通过循环伏安法获得了电化学结果,差分脉冲伏安法和电化学阻抗谱。BHA / rGO / CPE在其他电极上显示出良好的灵敏度。增强的结果归因于BHA的多重吸附能力和rGO的优异电导率性质的结合。对于较低的线性动态范围(5至100 µM)和较高的线性动态范围(120至310 µM),多巴胺的检出限和定量限分别为0.39、1.32 µM和0.63、2.10 µM。还证明了BHA / rGO / CPE可同时测定多巴胺(DA),对乙酰氨基酚(AC)和尿酸(UA),而在分析物分子之间没有干扰。此外,所讨论的传感器在确定真实样品分析中的DA方面具有巨大的潜在应用。BHA / rGO / CPE在其他电极上显示出良好的灵敏度。增强的结果归因于BHA的多重吸附能力和rGO的优异电导率性质的结合。对于较低的线性动态范围(5至100 µM)和较高的线性动态范围(120至310 µM),多巴胺的检出限和定量限分别为0.39、1.32 µM和0.63、2.10 µM。还证明了BHA / rGO / CPE可同时测定多巴胺(DA),对乙酰氨基酚(AC)和尿酸(UA),而在分析物分子之间没有干扰。此外,所讨论的传感器在确定真实样品分析中的DA方面具有巨大的潜在应用。BHA / rGO / CPE在其他电极上显示出良好的灵敏度。增强的结果归因于BHA的多重吸附能力和rGO的优异电导率性质的结合。对于较低的线性动态范围(5至100 µM)和较高的线性动态范围(120至310 µM),多巴胺的检出限和定量限分别为0.39、1.32 µM和0.63、2.10 µM。还证明了BHA / rGO / CPE可同时测定多巴胺(DA),对乙酰氨基酚(AC)和尿酸(UA),而在分析物分子之间没有干扰。此外,所讨论的传感器在确定真实样品分析中的DA方面具有巨大的潜在应用。对于较低的线性动态范围(5至100 µM)和较高的线性动态范围(120至310 µM),多巴胺的检出限和定量限分别为0.39、1.32 µM和0.63、2.10 µM。还证明了BHA / rGO / CPE可同时测定多巴胺(DA),对乙酰氨基酚(AC)和尿酸(UA),而在分析物分子之间没有干扰。此外,所讨论的传感器在确定真实样品分析中的DA方面具有巨大的潜在应用。对于较低的线性动态范围(5至100 µM)和较高的线性动态范围(120至310 µM),多巴胺的检出限和定量限分别为0.39、1.32 µM和0.63、2.10 µM。还证明了BHA / rGO / CPE可同时测定多巴胺(DA),对乙酰氨基酚(AC)和尿酸(UA),而在分析物分子之间没有干扰。此外,所讨论的传感器在确定真实样品分析中的DA方面具有巨大的潜在应用。

更新日期:2021-04-30
down
wechat
bug