Imprinted sol–gel electrochemical sensor for the determination of benzylpenicillin based on Fe3O4@SiO2/multi-walled carbon nanotubes-chitosans nanocomposite film modified carbon electrode

2011 ◽  
Vol 698 (1-2) ◽  
pp. 61-68 ◽  
Author(s):  
Yufang Hu ◽  
Jiaxing Li ◽  
Zhaohui Zhang ◽  
Huabin Zhang ◽  
Lijuan Luo ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electrochemical Sensor ◽  
Nanocomposite Film ◽  
Sol Gel ◽  
Carbon Electrode ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Bisphenol a electrochemical sensor based on multi-walled carbon nanotubes/polythiophene/Pt nanocomposites modified electrode

2016 ◽  
Vol 8 (16) ◽  
pp. 3333-3338 ◽  
Author(s):  
Jun Wan ◽  
Yuxiao Si ◽  
Chao Li ◽  
Kun Zhang
Keyword(s):  
Carbon Nanotubes ◽  
Bisphenol A ◽  
Electrochemical Sensor ◽  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Carbon Electrode ◽  
Modified Glassy Carbon Electrode ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

A facile and eco-friendly electrochemical sensor based on a multi-walled carbon nanotubes/polythiophene/Pt nanocomposites-modified glassy carbon electrode for determination of bisphenol A (BPA) was constructed using the MWCNT/PTh/Pt nanocomposites to modify glassy carbon (GC).

Molecularly Imprinted Electrochemical Sensor for the Determination of Sulfamethoxazole

2018 ◽  
Vol 21 (2) ◽  
pp. 077-080 ◽  
Author(s):  
Benzhi Liu ◽  
Guangqing Liu ◽  
Bo Xiao ◽  
Jinlong Yan
Keyword(s):  
Carbon Nanotubes ◽  
Detection Limit ◽  
Electrochemical Sensor ◽  
Carbon Electrode ◽  
Modified Glassy Carbon Electrode ◽  
Molecularly Imprinted ◽  
Real Samples ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

A selective and sensitive molecularly imprinted electrochemical sensor was prepared based on the electropolymerization of methylthionine chloride on the multi-walled carbon nanotubes modified glassy carbon electrode. The proposed sensor was applied to the determination of sulfamethoxazole which showed a linear range of 2.4 to 23.6 µM, and a detection limit of 0.81 µM.The determination of sulfamethoxazole in real samples was also studied.

A novel electrochemical sensor based on a glassy carbon electrode modified with Cu–MWCNT nanocomposites for determination of hydroquinone

2016 ◽  
Vol 8 (12) ◽  
pp. 2568-2575 ◽  
Author(s):  
Youzhi Yao ◽  
Yunchun Liu ◽  
Zhousheng Yang
Keyword(s):  
Carbon Nanotubes ◽  
Electrochemical Sensor ◽  
Glassy Carbon Electrode ◽  
Copper Nanoparticles ◽  
Glassy Carbon ◽  
Carbon Electrode ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

A new electrochemical sensor based on copper nanoparticles (Cu NPs) and multi-walled carbon nanotubes (MWCNTs) was fabricated for the determination of hydroquinone (HQ).

Electrochemical Sensor based on Multi-walled Carbon Nanotubes for Imidacloprid Determination

2021 ◽  
Author(s):  
Evellin Bruzaca ◽  
Raissa de Oliveira ◽  
Mateus Duarte ◽  
Camila Pinheiro Sousa ◽  
Simone Morais ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electrochemical Sensor ◽  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Carbon Electrode ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

A simple and robust sensor (fMWCNT-Nafion0.5%/GCE) for determination of imidacloprid (IMI), a widely used neonicotinoid, was developed using a glassy carbon electrode (GCE) modified with functionalized multi-walled carbon nanotubes (fMWCNT)...

Multi-walled Carbon Nanotubes Reinforced into Hollow Fiber by Chitosan Sol-gel for Solid/Liquid Phase Microextraction of NSAIDs from Urine Prior to HPLC-DAD Analysis

2019 ◽  
Vol 20 (5) ◽  
pp. 390-400 ◽  
Author(s):  
Nabil N. AL-Hashimi ◽  
Amjad H. El-Sheikh ◽  
Rania F. Qawariq ◽  
Majed H. Shtaiwi ◽  
Rowan AlEjielat
Keyword(s):  
Carbon Nanotubes ◽  
Liquid Phase ◽  
Hollow Fiber ◽  
Sol Gel ◽  
Liquid Phase Microextraction ◽  
Extraction Device ◽  
Multi Walled Carbon Nanotubes ◽  
Solid Liquid ◽  
Walled Carbon Nanotubes

Background: The efficient analytical method for the analysis of nonsteroidal antiinflammatory drugs (NSAIDs) in a biological fluid is important for determining the toxicological aspects of such long-term used therapies. Methods: In the present work, multi-walled carbon nanotubes reinforced into a hollow fiber by chitosan sol-gel assisted-solid/ liquid phase microextraction (MWCNTs-HF-CA-SPME) method followed by the high-performance liquid chromatography-diode array detection (HPLC–DAD) was developed for the determination of three NSAIDs, ketoprofen, diclofenac, and ibuprofen in human urine samples. MWCNTs with various dimensions were characterized by various analytical techniques. The extraction device was prepared by immobilizing the MWCNTs in the pores of 2.5 cm microtube via chitosan sol-gel assisted technology while the lumen of the microtube was filled with few microliters of 1-octanol with two ends sealed. The extraction device was operated by direct immersion in the sample solution. Results: The main factors influencing the extraction efficiency of the selected NSAIDs have been examined. The method showed good linearity R2 ≥ 0.997 with RSDs from 1.1 to 12.3%. The limits of detection (LODs) were 2.633, 2.035 and 2.386 µg L-1, for ketoprofen, diclofenac, and ibuprofen, respectively. The developed method demonstrated a satisfactory result for the determination of selected drugs in patient urine samples and comparable results against reference methods. Conclusion: The method is simple, sensitive and can be considered as an alternative for clinical laboratory analysis of selected drugs.

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