Online solid sampling platform using multi-wall carbon nanotube assisted matrix solid phase dispersion for mercury speciation in fish by HPLC-ICP-MS

2015 ◽  
Vol 30 (4) ◽  
pp. 882-887 ◽  
Author(s):  
Dongyan Deng ◽  
Shu Zhang ◽  
He Chen ◽  
Lu Yang ◽  
Hui Yin ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Solid Phase ◽  
Mercury Speciation ◽  
Solid Sampling ◽  
Multi Wall Carbon Nanotubes ◽  
Matrix Solid Phase Dispersion ◽  
Phase Dispersion ◽  
Icp Ms ◽  
Multi Wall Carbon Nanotube

A method using multi-wall carbon nanotubes assisted matrix solid phase dispersion was developed to couple with HPLC-ICP-MS for mercury speciation.

Use of Carbon Nanotubes for the Analysis of Pesticide Residues in Fruits and Vegetables

2016 ◽  
Vol 99 (6) ◽  
pp. 1415-1425 ◽  
Author(s):  
Lukman Bola Abdulrauf ◽  
Guan Huat Tan
Keyword(s):  
Carbon Nanotubes ◽  
Pesticide Residues ◽  
Solid Phase Microextraction ◽  
Fruits And Vegetables ◽  
Solid Phase ◽  
Purification And Characterization ◽  
Characterization Methods ◽  
Matrix Solid Phase Dispersion ◽  
Phase Dispersion ◽  
Sorbent Materials

Abstract This review presents the application of carbon nanotubes as sorbent materials in the analysis of pesticide residues in fruits and vegetables. The advantages, limitations, and challenges of carbon nanotubes, with respect to their use in analytical chemistry, are presented. The efficiency of their application as extraction sorbent materials (in terms of LOD, LOQ, linearity, relative recovery, and RSD) in SPE, solid-phase microextraction, multi-plug filtration clean-up, matrix solid-phase dispersion, and the quick, easy, cheap, effective, rugged and safe method is reported. The synthesis, functionalization, purification, and characterization methods of carbon nanotubes are also discussed.

Ethylenediamine-functionalized superparamagnetic carbon nanotubes for magnetic molecularly imprinted polymer matrix solid-phase dispersion extraction of 12 fluoroquinolones in river water

2015 ◽  
Vol 7 (14) ◽  
pp. 5838-5846 ◽  
Author(s):  
Xiao-Hong Chen ◽  
Yong-Gang Zhao ◽  
Yun Zhang ◽  
Hao-Yu Shen ◽  
Sheng-Dong Pan ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Molecularly Imprinted Polymer ◽  
Solid Phase ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Magnetic Molecularly Imprinted Polymer ◽  
Matrix Solid Phase Dispersion ◽  
Phase Dispersion ◽  
Magnetic Carbon ◽  
Magnetic Carbon Nanotubes

A novel fluoroquinolone molecularly imprinted polymer (MIP) on the surface of ethylenediamine-functionalized magnetic carbon nanotubes (EDA@Mag-CNTs–MIP) was synthesised.

Experimental investigation and modelling of drilling on multi-wall carbon nanotube–embedded epoxy/glass fabric polymeric nanocomposites

2016 ◽  
Vol 232 (11) ◽  
pp. 1943-1959 ◽  
Author(s):  
Kalyan Kumar Singh ◽  
Dhiraj Kumar
Keyword(s):  
Carbon Nanotubes ◽  
Surface Roughness ◽  
Carbon Nanotube ◽  
Feed Rate ◽  
Spindle Speed ◽  
Glass Fabric ◽  
Multi Wall Carbon Nanotubes ◽  
Weight Percentage ◽  
Drill Diameter ◽  
Multi Wall Carbon Nanotube

The primary objective of this research is to investigate the effect of multi-wall carbon nanotubes on drilling of multi-wall carbon nanotube–embedded epoxy/glass fabric polymeric nanocomposites. The experiments were conducted on composites with varying the weight percentage of multi-wall carbon nanotubes content to analyse drilling-induced delamination and surface roughness, which affect the quality and property of the drilled holes. The drilling parameters considered are spindle speed, feed rate and drill diameter. The microstructure of the holes was characterized using field emission scanning electron microscopy methods. For correlating the effect of the weight percentage of carbon nanotubes with the referred drilling parameters, a mathematical model was used, based on response surface methodology. For development of the mathematical model, four factors, namely, spindle speed, feed rate, diameter of drill and weight percentage of carbon nanotubes, were taken into account. The result established that delamination and surface roughness are reduced as multi-wall carbon nanotubes’ content increases. Maximum improvement in delamination factor was observed in the case of 1.0 wt% multi-wall carbon nanotube–embedded epoxy/glass fabric polymeric nanocomposite, which is 25% and 31.09% at the entrance and exit sides of the hole, respectively. With an increase in the feed rate and the drill diameter, delamination factor increases; however, with an increase in spindle speed, delamination factor decreases. Lower value of surface roughness (1.113 µm) was observed in 1.5 wt% of multi-wall carbon nanotube–embedded epoxy/glass fabric polymeric nanocomposite. However, surface roughness increases with an increase in feed rate and drill diameter.

Enhanced figure of merit in Mg2Si0.877Ge0.1Bi0.023/multi wall carbon nanotube nanocomposites

RSC Advances ◽  
2015 ◽  
Vol 5 (80) ◽  
pp. 65328-65336 ◽  
Author(s):  
Nader Farahi ◽  
Sagar Prabhudev ◽  
Matthieu Bugnet ◽  
Gianluigi A. Botton ◽  
Jianbao Zhao ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Power Factor ◽  
Figure Of Merit ◽  
Phonon Scattering ◽  
Thermoelectric Performance ◽  
Multi Wall Carbon Nanotubes ◽  
Energy Filtering ◽  
Multi Wall Carbon Nanotube

Adding multi wall carbon nanotubes to Mg2Si0.877Ge0.1Bi0.023 led to an increased power factor via energy filtering as well as a lowered thermal conductivity via increased phonon scattering, and thus an enhanced thermoelectric performance.

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