Resonance Enhancement of Raman Spectroscopy: Friend or Foe?
The presence of electronic transitions in the visible part of the spectrum can provide enormous enhancement of Raman signals. Two biomolecules, carotenoids and hemes, illustrate the sensitivity of the technique. The downside is the nonlinearity of the signal.
Fran Adar.
Logger Rhythm
A logarithm is a mathematical function that shows up in some forms of spectroscopy. Understanding what it is can give us a better appreciation for its function in our fields.
David W. Ball
Calibration Transfer, Part III: The Mathematical Aspects
Calibration transfer is a series of techniques used to apply a single spectral database, and the calibration model developed using that database, to two or more instruments. Here, we review the mathematical approaches and issues related to the calibration transfer process.
Jerome Workman, Jr. and Howard Mark
PEER-REVIEWED ARTICLE
NIR Model Transfer Based on Wavelet Transform Algorithms
A study is presented that uses an amine mixture as an example to discuss the combination of wavelet and piecewise direct standardization algorithms, which will improve the precision of near infrared (NIR) model transfer.
Ju Xiang Wang, Zhi Na Xing, and Jun Qu
INTERVIEW
Out of This World: The Next Generation of Medical Diagnosis
Real-time air fingerprinting (RAFT) uses spectroscopic techniques to measure volatile organic compounds. Now, the University of Leicester in the UK is testing the use of RAFT for rapid and noninvasive diagnosis of illness in an emergency ward. Paul Monks, a professor in atmospheric chemistry and earth observation science, explains the approach.
NEWS
NASLIBS Now Part of FACSS and SciX
Market Profile: Used IR and NIR Spectroscopy Instrumentation
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Avoid the 483 - Unconventional Approaches to Elevate Your Quality Program
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Implementing Routine Elemental Speciation in Your Laboratory, in Readiness for Future Legislation
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An Introduction to USP 232/233 and How to Prepare and Analyze Samples for Trace Metals Analysis by ICP-MS/ICP-OES
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Implementing Routine Elemental Speciation in Your Laboratory, in Readiness for Future Legislation
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The Frontier of 3D Raman Imaging: Resolution, Speed, and Throughput Without Compromise
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