Sensitive and selective electrochemical determination of uric acid in urine based on ultrasmall iron oxide nanoparticles decorated urchin-like nitrogen-doped carbon

Tang, Tong; Zhou, Menglin; Lv, Jiapei; Cheng, Hsin-Pai; Wang, Huaisheng; Qin, Danfeng; Hu, Guangzhi; Liu, Xiaoyan

doi:10.1016/j.colsurfb.2022.112538

Cited by 119 publications

(29 citation statements)

References 52 publications

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“…A lower coefficient of determination ( R 2 = 0.97109) for the dependence of NFN oxidative peak current on the scan rate than on the square root of the scan rate ( R 2 = 0.99514) indicated that the oxidation reaction of NFN at the poly(ANSA)/GCE was predominantly controlled by diffusion mass transport. − This was further confirmed by the slope value of 0.59 for the plot of log (peak current) versus log (scan rate) (Figure S4), which is in agreement with the value of 0.50 for an ideal diffusion-controlled reaction …”

Section: Resultssupporting

confidence: 73%

Selective Determination of Norfloxacin in Pharmaceutical Formulations and Human Urine Samples Using Poly(8-aminonaphthaline-2-sulfonic Acid)-Modified Glassy Carbon Electrodes

Debalkie,

Guadie,

Kassa

et al. 2023

ACS Omega

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In this study, a glassy carbon electrode was modified potentiodynamically with poly(8-aminonaphthaline-2-sulfonic acid) [poly(ANSA)/GCE] for the detection of norfloxacin (NFN) in tablet formulations and human urine samples. Improvement of the effective surface area of the modified electrode and decreased charge-transfer resistance confirmed surface modification of the GCE by a conductive poly(ANSA) film. The appearance of an oxidative peak without a reductive peak in the reverse scan direction showed the irreversibility of the electrochemical oxidation of NFN in both the bare GCE and poly(ANSA)/GCE. A better coefficient of determination for the peak current on the square root of the scan rate (R 2 = 0.99514) than the scan rate (R 2 = 0.97109), indicating the oxidation of NFN at the poly(ANSA)/GCE, was predominantly diffusion mass transport-controlled. Under optimized pH and square wave parameters, the voltammetric current response of NFN at the poly(ANSA)/GCE showed linear dependence on the concentration, ranging from 1.0 × 10–8 to 4.0 × 10–4 M with a limit of detection of 4.1 × 10–10. The NFN level in the studied tablet brands was in the range of 90.30–103.3% of their labeled values. Recovery results in tablet and urine samples ranged from 98.35 to 101.20% and 97.75 to 99.60%, respectively, and interference recovery results were less than 2.13% error in the presence of ampicillin, chloroquine phosphate, and cloxacillin. The present method had a better performance for the determination of NFN in tablet formulations and urine samples as compared with recently reported voltammetric methods due to its requirement of a simple electrode modification step, which provides the least limit of detection and a reasonably wider linear dynamic range.

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Section: Resultssupporting

confidence: 73%

Selective Determination of Norfloxacin in Pharmaceutical Formulations and Human Urine Samples Using Poly(8-aminonaphthaline-2-sulfonic Acid)-Modified Glassy Carbon Electrodes

Debalkie,

Guadie,

Kassa

et al. 2023

ACS Omega

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“…Fe 2 O 3 -MIL-100 has a weakened intensity of the characteristic peak in MIL-100 compared to MIL-100 (Fe), indicating that Fe 2 O 3 was successfully loaded on the surface of MIL-100(Fe). to Fe 3+ peaks at 2p 1/2 and 2p 3/2 , respectively, while there are two Fe 3+ satellite peaks at 733.1 and 719.24 eV [47]. All the results obtained clearly indicate the successful synthesis of Fe 2 O 3 -MIL-100.…”

Section: Characterization Of Fe 2 O 3 -Mil-100mentioning

confidence: 61%

Hematite nanoparticle decorated MIL-100 for the highly selective and sensitive electrochemical detection of trace-level paraquat in milk and honey

Zhou

Tang

Qin

et al. 2023

Sensors and Actuators B: Chemical

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“…Spectroscopic techniques, such as atomic absorption spectroscopy (AAS) and inductively coupled plasma–mass spectrometry (ICP–MS), have very high sensitivity and accuracy in metal analysis. − However, for the detection of metal ions, these methods have to be coupled with separation procedures. , Moreover, the spectroscopic methods often need professional operation and advanced equipment, impeding their wide applications, particularly in rapid, in situ , and real-time HMI detection. Alternatively, electrochemical sensors have attracted increasing attention due to their unique merits of rapid response, cost-effectiveness, good portability, and simple operation. − As the core module of the electrochemical sensor, electrode materials determine the electrochemical performances of the sensors. − For HMI detection by differential pulse stripping voltammetry (DPSV), the sensitivity of the electrochemical sensor is closely correlated to the deposition of adsorbed HMIs on the electrode surface. Hence, high electroconductivity, fast mass transfer, and strong adsorption affinity of electrodes towards HMIs are essential for the excellent performance of the electrochemical sensor.…”

Section: Introductionmentioning

confidence: 99%

“…Hence, high electroconductivity, fast mass transfer, and strong adsorption affinity of electrodes towards HMIs are essential for the excellent performance of the electrochemical sensor. Accordingly, carbonaceous materials with porous structures partially meet the requirements and thus are widely used in electrochemical sensors because of their large surface area and high conductivity. − …”

Section: Introductionmentioning

confidence: 99%

“…Accordingly, carbonaceous materials with porous structures partially meet the requirements and thus are widely used in electrochemical sensors because of their large surface area and high conductivity. 21 Among porous carbons, carbon nanomaterials derived from zeolitic imidazolate frameworks (ZIFs) with merits of high surface area, regular pore structure, and high conductivity are considered to be excellent candidates as the main component of electrodes in electrochemical sensors. The porous carbons commonly inherit the advantages of abundant micropores from their pristine ZIFs.…”

Section: Introductionmentioning

confidence: 99%

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Amino-Functionalized Hierarchical Porous Carbon Derived from Zeolitic Imidazolate Frameworks for Ultrasensitive Electrochemical Sensing of Heavy Metals in Water

Yang

Xin

et al. 2023

ACS Appl. Mater. Interfaces

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Electrochemical sensing provides a feasible avenue to monitor heavy metal ions (HMIs) in water, whereas the construction of highly sensitive and selective sensors remains challenging. Herein, we fabricated a novel amino-functionalized hierarchical porous carbon by the template-engaged method using ZIF-8 as the precursor and polystyrene sphere as the template, followed by carbonization and controllable chemical grafting of amino groups for efficient electrochemical detection of HMIs in water. The amino-functionalized hierarchical porous carbon features an ultrathin carbon framework with a high graphitization degree, excellent conductivity, unique macro-, meso-, and microporous architecture, and rich amino groups. As a result, the sensor exhibits prominent electrochemical performance with significantly low limits of detection for individual HMIs (i.e., 0.93 nM for Pb2+, 2.9 nM for Cu2+, and 1.2 nM for Hg2+) and simultaneous detection of HMIs (i.e., 0.62 nM for Pb2+, 1.8 nM for Cu2+, and 0.85 nM for Hg2+), which are superior to most reported sensors in the literature. Moreover, the sensor displays excellent anti-interference ability, repeatability, and stability for HMI detection in actual water samples.

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Sensitive and selective electrochemical determination of uric acid in urine based on ultrasmall iron oxide nanoparticles decorated urchin-like nitrogen-doped carbon

Cited by 119 publications

References 52 publications

Selective Determination of Norfloxacin in Pharmaceutical Formulations and Human Urine Samples Using Poly(8-aminonaphthaline-2-sulfonic Acid)-Modified Glassy Carbon Electrodes

Selective Determination of Norfloxacin in Pharmaceutical Formulations and Human Urine Samples Using Poly(8-aminonaphthaline-2-sulfonic Acid)-Modified Glassy Carbon Electrodes

Hematite nanoparticle decorated MIL-100 for the highly selective and sensitive electrochemical detection of trace-level paraquat in milk and honey

Amino-Functionalized Hierarchical Porous Carbon Derived from Zeolitic Imidazolate Frameworks for Ultrasensitive Electrochemical Sensing of Heavy Metals in Water

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