用金纳米颗粒装饰的石墨烯氧化物作为敏感的改性碳糊电极,用于同时测定氨酸和尿酸
Elahe Garazhian1, Majid Kalate Bojdi2, Mohammad Behbahani3
1Department of Chemistry, Faculty of Science, University of Birjand, Birjand, South Khorasan, Iran.
Scientific reports
|October 15, 2023
概括
一个新的改性碳糊电极有效地同时确定氨酸和尿酸. 这种简单,低成本的方法为生物样本分析提供了高灵敏度和稳定性.
科学领域:
- 电化学 电化学 电化学
- 纳米材料科学 科学 纳米材料科学
- 分析化学 分析化学
背景情况:
- 同时测定氨酸和尿酸对于诊断各种健康状况至关重要.
- 现有的方法往往缺乏灵敏度,选择性或成本高.
研究的目的:
- 开发一种简单,快速和具有成本效益的方法,用于同时测定氨酸和尿酸.
- 使用一种经过修改的碳糊电极,其功能与氧化石墨烯和金纳米粒子 (GO/AuNPs/MCPE) 相结合.
主要方法:
- 使用诸如X射线衍射,TEM,DLS,Zeta电位,EIS和电压计等技术制造和描述GO/AuNPs/MCPE.
- 使用修改过的电极,用电化学方法测定氨酸和尿酸.
主要成果:
- 在GO/AuNPs/MCPE中,氨酸 (0.14-340.00 μmol L−1) 和尿酸 (0.06-141.00 μmol L−1) 的线性范围很宽.
- 实现了低方法检测极限 (MDL),即氨酸的0.0060μmol L-1和尿酸的0.0037μmol L-1.
- 在生物矩阵中同时分析的高稳定性,灵敏性和可重复性.
结论:
- 开发的GO/AuNPs/MCPE提供了一个有前途的电化学平台,用于敏感和选择性地同时检测氨酸和尿酸.
- 该方法为临床诊断和生物化学研究提供了可行的,低成本的替代方案.
更多相关视频
![Quantitative SERS Detection of Uric Acid via Formation of Precise Plasmonic Nanojunctions within Aggregates of Gold Nanoparticles and Cucurbit[n]uril](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F61682.jpg&w=3840&q=50)
10:02Quantitative SERS Detection of Uric Acid via Formation of Precise Plasmonic Nanojunctions within Aggregates of Gold Nanoparticles and Cucurbit[n]uril
Published on: October 3, 2020
3.9K
10:48Electrochemical Preparation of Poly3,4-Ethylenedioxythiophene Layers on Gold Microelectrodes for Uric Acid-Sensing Applications
Published on: July 28, 2021
4.0K
相关概念视频
01:15Potentiometry: Membrane Electrodes
Membrane electrodes, also known as p-ion electrodes, use membranes that selectively interact with free analyte ions, generating a potential difference across the membrane. The resulting membrane potential, known as the asymmetry potential, is not zero even when analyte concentrations on both sides of the membrane are equal. The membrane's response is typically not selective to a single analyte but proportional to the concentration of all ions in the sample solution capable of interacting at the...
01:10Amperometry: Overview
Amperometry is a technique commonly used to measure the concentration of specific analytes in a solution by monitoring the electric current generated during an electrochemical reaction. It involves applying a constant potential between a working electrode and a reference electrode to measure the resulting current, which is proportional to the concentration of the analyte. The Clark oxygen electrode operates based on this principle of amperometry. It consists of a cathode and an anode enclosed...