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John Hammond and Chris Burgess are also in the middle of a multi-part contribution to the Quality Matters column. “…that’s what I thought you said?” looks at further misundertandings in terminologies surrounding Reference Materials, and sets the record straight.
“Spectral database for postage stamps by means of FT-IR spectroscopy” by Eleonora Imperio, Gabriele Giancane and Ludovico Valli will be of great interest. As well as helping to detect forgeries, FT-IR has been used to create a database which also charts the history of the technology used to create stamps. Quite rightly, they are considered by many to be works of art.
Further applications of Raman in the biological world are discussed in “Raman spectroscopy for the study of biological organisms (biogenic materials and biological tissues): a valuable analytical tool” by Malvina Orkoula and Christos Kontoyannis. In this article, the applications are more medical and show how Raman spectroscopy can provide more information on parts of our bodies from kidney stones to osteoarthritic hips than the traditionally used techniques of FT-IR spectroscopy and X-ray diffraction.
“Emerging sampling approaches for Raman analysis of foods” by Nils Kristian Afseth, Matthew Bloomfield, Jens Petter Wold and Pavel Matousek describes how a number of instrumental developments are enabling Raman spectroscopy to find increasing applications in food analysis. They show how Spatially Offset Raman Spectroscopy (SORS) is being used to analyse quality parameters in salmon, including the content of fat, its fat composition and the content of carotenoids. Traditionally, the preserve of NIR spectroscopy, Raman may increasingly be used for the analysis of food and other biological matrices.
“Membrane inlet mass spectrometry for in situ environmental monitoring” by Simon Maher, Fred Jjunju, Iain Young, Boris Brkic and Stephen Taylor looks at a technique that is 50 years old but is now being applied for field analysis. As well as a brief overview of the technique, they show how it can be used to monitor oil-in-water levels before discharge from oil termini.
Tony (A.M.C.) Davies looks at Multiple Linear Regression (MLR) this issue, as well as expressing his opinions about Principal Components Regression (PCR) and Partial Least-Squares (PLS).
With Pittcon and Analytica so close together this year, we have combined our reports to bring the very latest new spectroscopy product introductions from both sides of the Atlantic. Any evident trends were broadly similar to last year, with continued development in the miniaturisation of instrumentation, whether the end result is palm-sized or “luggable”. The areas of imaging and Raman spectroscopy (and sometimes both combined) produced a comparatively large number of introductions. As always, our apologies to any companies that we may have missed; we are always happy to try and include your new products in the section of that name.
Mathieu Duval raises the question “Dating fossil teeth by electron paramagnetic resonance: how is that possible?”. Whilst we are all familiar with 14C dating, the use of EPR is less well known. In fact, there are less than 10 laboratories in the world able to carry out EPR dating of fossil teeth!
“From lake ecology to biofuels—applications of Fourier transform infrared spectroscopy to algal research” is the topic of Andrew Dean, Jon Pittman and David Sigee. Algae are essential for our continued live on Earth, and FT-IR spectroscopy can increase our understanding of their physiology and biotech potential.
Page 9 of 27
- Infrared spectroscopic techniques for the non-invasive and rapid quality control of Chinese traditional medicine Si-Wu-Tang
- Synchrotron-based micro Fourier transform infrared mapping to investigate the spatial distribution of amorphous and crystalline calcium carbonate in earthworm-secreted calcium carbonate balls
- Spectroscopic evidences to understand the influence of marine environments on Built Heritage
- Infrared spectroscopy as a tool to study plant cuticles
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