Incineration of carbon nanomaterials with sodium chloride as a potential source of PCDD/Fs and PCBs

2020 ◽  
Vol 382 ◽  
pp. 121030 ◽  
Author(s):  
Takashi Fujimori ◽  
Asako Toda ◽  
Kota Mukai ◽  
Masaki Takaoka
Keyword(s):  
Sodium Chloride ◽  
Carbon Nanomaterials ◽  
Potential Source

Graphitic Carbon Nanoparticles from Asphaltenes

2011 ◽  
Vol 1312 ◽  
Author(s):  
Christophe Danumah ◽  
Andrew J. Myles ◽  
Hicham Fenniri
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Carbon Nanoparticles ◽  
Scanning Transmission Electron Microscopy ◽  
Carbon Nanomaterials ◽  
Potential Source ◽  
Transmission Electron ◽  
Scanning Transmission ◽  
Carbon Coated ◽  
20 Nm

ABSTRACTWe report preliminary studies on the preparation of carbon nanoparticles (CNPs) of ~ 20 nm in diameter derived from asphaltenes under mild conditions. This transformation occurred upon heating a thin film of asphaltenes cast on a carbon coated copper grid under both nitrogen and oxygen atmosphere. The resulting CNPs were characterized by thermogravimetric analysis (TGA), scanning/transmission electron microscopy (SEM/STEM), transmission electron microscopy (TEM), elemental analysis (EA) and Auger electron spectroscopy (AES). The findings point towards asphaltenes, a crude oil by-product, as a potential source for carbon nanomaterials.

How SIMS microscopy can be used in medicine

1992 ◽  
Vol 50 (2) ◽  
pp. 1602-1603
Author(s):  
Philippe Fragu
Keyword(s):  
Mass Spectrometry ◽  
Biomedical Applications ◽  
Secondary Ion Mass Spectrometry ◽  
Chemical Elements ◽  
Biological Applications ◽  
The Past ◽  
Potential Source ◽  
Secondary Ion ◽  
Chemical Integrity ◽  
Scientific Endeavour

The identification, localization and quantification of intracellular chemical elements is an area of scientific endeavour which has not ceased to develop over the past 30 years. Secondary Ion Mass Spectrometry (SIMS) microscopy is widely used for elemental localization problems in geochemistry, metallurgy and electronics. Although the first commercial instruments were available in 1968, biological applications have been gradual as investigators have systematically examined the potential source of artefacts inherent in the method and sought to develop strategies for the analysis of soft biological material with a lateral resolution equivalent to that of the light microscope. In 1992, the prospects offered by this technique are even more encouraging as prototypes of new ion probes appear capable of achieving the ultimate goal, namely the quantitative analysis of micron and submicron regions. The purpose of this review is to underline the requirements for biomedical applications of SIMS microscopy.Sample preparation methodology should preserve both the structural and the chemical integrity of the tissue.

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