Low frequency vibrations observed on assemblies of vertical multiwall carbon nanotubes by Brillouin light scattering: determination of the Young modulus

2020 ◽  
Vol 32 (45) ◽  
pp. 455701
Author(s):  
Ahmed Andalouci ◽  
Yves Roussigné ◽  
Samir Farhat ◽  
Salim Mourad Chérif
2015 ◽  
Vol 7 (4) ◽  
pp. 1280-1292 ◽  
Author(s):  
Saman Azodi-Deilami ◽  
Ebadullah Asadi ◽  
Majid Abdouss ◽  
Fardin Ahmadi ◽  
Alireza Hassani Najafabadi ◽  
...  

A highly selective voltammetric sensor for the determination of meloxicam using a MIP@MWCNT–CPE is introduced.


RSC Advances ◽  
2016 ◽  
Vol 6 (108) ◽  
pp. 107094-107103 ◽  
Author(s):  
Piyush Kumar Sonkar ◽  
Vellaichamy Ganesan ◽  
S. Abraham John ◽  
Dharmendra Kumar Yadav ◽  
Rupali Gupta

Nickel salophen (where salophen is N,N′-bis(salicylidene)-1,2-phenylenediamine) is immobilized on multiwall carbon nanotubes. This new material is utilized for electrocatalytic oxidization and sensitive determination of glucose in human blood samples.


2014 ◽  
Vol 97 (1) ◽  
pp. 173-178 ◽  
Author(s):  
Forouzan Aboufazeli ◽  
Hamid Reza Lotfi Zadeh Zhad ◽  
Omid Sadeghi ◽  
Mohammad Karimi ◽  
Ezzatollah Najafi

Abstract The application of a novel Cd(II) ion imprinted polymer coated on multiwall carbon nanotubes was investigated for preconcentration and determination of low levels of Cd ions. This novel sorbentwas characterized by scanning electron microscopy, thermal gravimetric/differential thermal analysis, elemental analysis, and FTIR spectrometry. Effects of various factors, such as pH of the sample solution, eluent (type, concentration, and volume), and flow rates of the sample and eluent, were evaluated in this study. To investigate the selectivity of the sorbent toward Cd(II) ions, the effects of a variety of ions on preconcentration and recovery of Cd(II) ions were investigated. TheLOD was 1.3 ng/mL; the recovery and RSD of the method were 96.4% and below 3.1%, respectively. Validation of the method was performed by analyzing some standard reference materials with certified Cd(II) concentrations. Finally, the sorbent was applied for separation and determination of Cd(II)ions in food samples.


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