Fuels and the taxes raised from their sale are a big business around the world. To control smuggling, counterfeiting, theft and product diversion, markers can be placed in the fuel. The use of a SERS active compounds as markers is described as well as the development of a portable instrument for detection of the markers in the field.
Most of us are increasingly aware of the dangers of the modern diet and realise that salt intake should be kept low. It turns out that bread is a major contributor to our salt intake. However, without it, the bread is not particularly palatable. One trick is to distribute the salt unevenly throughout the bread, but the salt then needs to be encapsulated to prevent it dissolving. This article describes the use of laser-induced breakdown spectroscopy to monitor this distribution and help develop methods to reduce the salt content of bread whilst maintaining the taste.
Both the size and chemical composition of airborne particles have an effect on human health. Whilst the effects of size have been much studied, many of the toxic chemicals in particles are at very low concentration and have been less studied. Monitoring their composition and concentration over time helps to determine their source. Synchrotron radiation-induced XRF spectrometry proves to be a good tool for this purpose.
Single-walled carbon nanotubes and graphene are the subjects of great interest at present. The Tip-enhanced Raman mapping (TERM) technique is most useful for their study and can even find defects in a single sheet of graphene or a single nanotube with a spatial resolution of ~35 nm.
Applications are invited for the 2013 Gordon Kirkbright Bursary, a prestigious annual award that enables a promising student/non-tenured young scientist of any nation to attend a recognised scientific meeting or visit a place of learning.
Scientists at the University of Warwick have developed a computation which simultaneously doubles the resolution, sensitivity and mass accuracy of Fourier Transform Mass Spectrometry (FT-MS) at no extra cost.
In the chemical industry, heterogeneous catalysis is vital for the manufacture of basic or fine chemicals, in catalytic converters of exhaust gas and for the chemical storage of solar energy. A new infrared spectroscopy method can study processes at surfaces of oxides used as catalysts.
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- Graphene characterisation and standardisation via Raman spectroscopy
- Direct Analysis in Real Time mass spectrometry and its application for the analysis of polydimethylsiloxanes
- The use of inductively coupled plasma mass spectrometry to quantify chemical hazards in natural history collections: arsenic and mercury in taxidermy bird specimens
- Fourier transform infrared spectroscopy and imaging of dragonfly, damselfly and cicada wing membranes
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- Atomic absorption
- Atomic emission
- Ion mobility
- Laser spectroscopy
- Mass spectrometry
- Near infrared
- NMR ESR EPR
- North America
- Related equipment
- RMs and standards
- Separation science
- South America
- Surface analysis
- X-ray spectrometry