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COLUMNS
CHEMOMETRICS IN SPECTROSCOPY
Classical Least Squares, Part XI: Comparison of Results from the Two Laboratories Continued, and Then the Light Dawns
In the final installment of this series, the main problem is solved using the CLS algorithm to find that the spectroscopy is sensitive to the volume fractions of the various components in a mixture
Howard Mark and Jerome Workman, Jr.

FUTURE OF LIGHT-BASED TECHNOLOGIES
Making Images at the Speed of Light
Kicking off this new series on light-based technologies and applications, Spectroscopy interviewed Andreas Velten about his work developing "femto photography" as a postdoctoral associate at the Massachusetts Institute of Technology Media Lab.

ARTICLES
Label-Free Chemical Detection in Microfabricated Devices Using FT-IR Spectroscopic Imaging
A summary of some recent efforts to develop applications of Fourier transform infrared (FT-IR) imaging for microfluidics and a discussion of different approaches (transmission and attenuated total reflectance mode) to obtain FT-IR images of microfluidic devices.
K.L. Andrew Chan and Sergei G. Kazarian

Observing Heterogeneous Catalysts While They Are Working Using Operando Raman Spectroscopy
The opportunities and current progress of operando Raman spectroscopy are presented through examples based on the authors’ work.
M. Olga Guerrero-Pérez and M.A. Bañares

Energize Your Laboratory at the 2012 Eastern Analytical Symposium
The 2012 EAS program chair presents highlights of the invited symposia in spectroscopy and related fields, from the perspective of what the chairs of the invited sessions had in mind when developing the sessions and what you can expect to learn.
Mary Ellen McNally

FEATURED ON DEMAND WEBCASTS
Editors' Series: Possibilities and Limitations of ICP Spectroscopy for Trace Analysis
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