Fabrication of a disposable electrode based on recordable gold compact disc modified with Bi-Bi2O2CO3@ graphitic carbon nitride nanocomposite for the simultaneous detection of mesalazine and uric acid in biological fluids

IF 5.8 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Journal of Alloys and Compounds Pub Date : 2024-10-30 DOI:10.1016/j.jallcom.2024.177255

Saeideh Sotoudeh, Susan Sadeghi

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Abstract

A homemade disposable gold electrode was fabricated from gold compact disc (Au-CDs) and modified with Bi-Bi₂O₂CO₃@g-C₃N₄ nanocomposite for the simultaneous detection of mesalazine (5-amino salicylic acid; 5-ASA) and uric acid (UA) in aqueous solutions. The Bi-Bi₂O₂CO₃@g-C₃N₄ nanocomposite was characterized by Fourier transform infrared spectroscopy, energy-dispersive X-ray spectroscopy, field emission scanning electron microscopy and photoluminescence spectroscopy. The analytical response of the modified g-CDs electrode towards 5-ASA and UA was evaluated by cyclic voltammetry and differential pulse voltammetry. Under optimal conditions, the modified g-CDs electrode was able to detect 5-ASA and UA in the concentration ranges of 1.0-160 µmol L^-1 and 10-190 µmol L^-1 with detection limits of 0.65 µmol L^-1 and 3.07 µmol L^-1 for 5-ASA and UA, respectively. The prepared Bi-Bi₂O₂CO₃@g-C₃N₄ nanocomposite exhibited high sensitivity and selectivity towards 5-ASA and UA in urine and plasma samples with recoveries in the range of 91.0% - 109.3%.

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基于用 Bi-Bi2O2CO3@ 氮化石墨纳米复合材料修饰的可记录金光盘制备一次性电极，用于同时检测生物液体中的美沙拉秦和尿酸

利用金光盘（Au-CDs）自制了一次性金电极，并用 Bi-Bi2O2CO3@g-C3N4 纳米复合材料对其进行修饰，用于同时检测水溶液中的美沙拉嗪（5-氨基水杨酸；5-ASA）和尿酸（UA）。傅立叶变换红外光谱、能量色散 X 射线光谱、场发射扫描电子显微镜和光致发光光谱对 Bi-Bi2O2CO3@g-C3N4 纳米复合材料进行了表征。通过循环伏安法和差分脉冲伏安法评估了改性 g-CDs 电极对 5-ASA 和 UA 的分析响应。在最佳条件下，改性 g-CDs 电极能够检测浓度范围为 1.0-160 µmol L-1 和 10-190 µmol L-1 的 5-ASA 和 UA，5-ASA 和 UA 的检测限分别为 0.65 µmol L-1 和 3.07 µmol L-1。所制备的 Bi-Bi2O2CO3@g-C3N4 纳米复合材料对尿液和血浆样品中的 5-ASA 和 UA 具有很高的灵敏度和选择性，回收率在 91.0% - 109.3% 之间。

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来源期刊

Journal of Alloys and Compounds 工程技术-材料科学：综合

CiteScore

11.10

自引率

14.50%

发文量

5146

审稿时长

67 days

期刊介绍： The Journal of Alloys and Compounds is intended to serve as an international medium for the publication of work on solid materials comprising compounds as well as alloys. Its great strength lies in the diversity of discipline which it encompasses, drawing together results from materials science, solid-state chemistry and physics.