Elemental and isotope analysis of the metals in ancient artefacts such as the prutah shown here sometimes can pinpoint the places where the metal was mined. This can be combined with historical sources to determine when the coin was likely struck. Archaeologists can use the evidence to identify or narrow date ranges of historical significance.
A new study from the Swedish medical university Karolinska Institutet presents a technique using LC-MS/MS that makes drug testing possible through exhaled air for the first time. By examining people who had received emergency care for an amphetamine overdose, the researchers found that in all cases there were traces of amphetamine and metamphetamine in the exhaled breath.
Scientists from Ruhr-Universität Bochum have used Raman micro-spectroscopy to distinguish, within seconds, healthy fertile and infertile sperm cells. The method has the potential for a novel fertility technology and a test scheme which does not only rely on morphological characteristics, but also utilises chemical signatures.
Coupling an isotope ratio mass spectrometer to an elemental analyser or gas chromatograph/combustion system has been used to analyse squalene and squalane, oils often used in the production of cosmetics and vaccines, and can show whether they came originally from the liver oil of deepwater sharks or from olive oil.
David Wetzel and Yong-Cheng Shi of Kansas State University, USA, and John Reffner from John Jay College, City University of New York, USA have applied microscopic chemical imaging to single modified starch granules. Starch manufacturers can use this to determine if the modifying agent used in the production process is uniformly distributed across individual modified starch granules. Mark Boatwright, a K-State graduate research assistant in grain science and industry assisted with data processing for the study.
The first researchers have arrived on the latest experimental station to become operational at the Diamond Light Source, the UK’s national synchrotron facility. The new experimental station (B18) offers X-ray Absorption Spectroscopy (XAS).
Lipids produced by the aspirin target COX-2 have anti-oxidant and anti-inflammatory properties as presented in a study published online this week in Nature Chemical Biology (doi: 10.1038/nchembio.367).
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- Rheo-nuclear magnetic resonance spectroscopy: a versatile toolbox to investigate rheological phenomena in complex fluids
- Two dimensional elemental mapping by laser-induced breakdown spectroscopy
- Elucidating structural and compositional changes in plant tissues and single cells by Raman spectroscopic imaging
- Multisensor hyperspectral imaging as a versatile tool for image-based chemical structure determination
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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