This article shows that pyrolysis techniques, in combination with spectroscopy, are helping our understanding of how the organic matter in our solar system came to be. Fascinatingly, they also show how secondary processing of meteorite materials seems to enhance the abilities of atmospheres to host life on planetary surfaces as well as providing the raw materials from which life could originate.
A complication and barrier to wider uptake of SIMS, especially for organic materials, is the complexity of the mass spectrum. The G-SIMS method (from gentle-SIMS) was developed to simplify the spectra and provide direct interpretation based on the physics and chemistry of the SIMS process rather than on statistical analysis techniques such as principal component analysis or library matching methods.
There are many reasons for quantifying VOCs in air, from investigating pollution to diagnosis of diseases in humans. PTR-MS has many advantages for this, not least in speed and ability to provide an online analysis. It is a relatively young technique, but has a range of applications from botany and medicine through to industrial process monitoring, security screening, environmental analysis and food science.
This article explains what is represented in a Raman spectrum of carbon nanotubes and how to optimise the measurement. There is actually significant diversity within samples of nanotubes which affects both the material properties and the Raman spectrum of the material.
The use of isotope ratio mass spectrometry is on the rise, with more papers published and more labs with the facilities. The authors describe the main IRMS studies conducted on seeds and isotopes and outline the most important aspects of the use of seeds to study plant eco-geochemistry and plant material traceability.
- Single particle characterisation in biologics: from mid-infrared micro-spectroscopy and mapping to spectral imaging
- Time-resolved X-ray absorption spectroscopy
- An important use of Raman spectroscopy to help understand the impact of traffic on roadside soils and plants
- Surface-enhanced infrared spectroscopy
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Gujarathi Dipak B. saidSir,
This is an excellent appl... 8 months ago
Rakesh Kanda saidDr Alfonso,
Matrix suppression is ... 1 year ago
Dr Robson JCF Afonso saidDear Authors,
As you sad atmospheric... 1 year ago
Dr Robson JCF Afonso saidI am glad to hearing someone question... 2 years ago
Peter Jenks saidThat is a reason I\'d overlooked - po... 2 years ago
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- Atomic absorption
- Atomic emission
- Ion mobility
- Laser spectroscopy
- Mass spectrometry
- Near infrared
- NMR ESR EPR
- Related equipment
- RMs and standards
- Sample prep
- Separation science
- Surface analysis
- X-ray spectrometry