Hostname: page-component-848d4c4894-x24gv Total loading time: 0 Render date: 2024-05-16T01:23:12.988Z Has data issue: false hasContentIssue false
  • English
  • Français

Combining Imaging and Spectroscopy: Solving Problems with Near Infrared Chemical Imaging

Published online by Cambridge University Press:  14 March 2018

E. Neil Lewis ,
Eunah Lee  and
Linda H. Kidder
E. Neil Lewis*
Affiliation:
Spectral Dimensions, Inc.
Eunah Lee
Affiliation:
Spectral Dimensions, Inc.
Linda H. Kidder
Affiliation:
Spectral Dimensions, Inc.
*
nlewis@spectraldimensions.com

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Historically near-infrared (NIR) spectroscopy has enjoyed significant success as the industrial ‘cousin’ of the mid-infrared FTIR spectrometer. Most NIR spectrometers are significantly more rugged than their MIR counterparts, and are therefore suited for use as a QA/QC tool. Sample preparation is trivial or non-existent for most solid-state or liquid samples and data collection is rapid, while still achieving excellent signal to noise. All these factors combine to produce an analytical measurement technology with widespread applicability. Until relatively recently, its capabilities as a microspectroscopy and chemical imaging tool has been largely underutilized. Most NIR spectra have been collected from bulk, not microspectroscopic samples.

Mid-infrared (MIR) microscopy, based on a Fourier Transform infrared (FTIR) spectrometer, has been the infrared microspectroscopy technique most readily available up to now. It is a broadly employed chemical identification tool that is used to complement traditional light microscopy.

Type
Research Article
Information
Microscopy Today , Volume 12 , Issue 6 , November 2004 , pp. 8 - 13
Copyright
Copyright © Microscopy Society of America 2004

References

Endnotes

1 Barer, R., Cole, A. R. H., Thompson, H. W., Nature 163, 193, 1945.Google Scholar

2 Harthcock, M. A. and Atkin, S. C., Appl. Spectrosc. 42, 3, 1988 CrossRefGoogle Scholar.

3 Lewis, E. N., Levin, I. W. and Treado, P. J., U. S. Patent 5,377,003, 1994 Google Scholar.

4 Lewis, E. N., Treado, P. J., Reeder, R. C., Story, G. M., Dowrey, A. E., Marcott, C., and Levin, I. W., Anal. Chem. 67, 3377, 1995 CrossRefGoogle Scholar.

5 Koehler, F. W., Lee, E., Kidder, L. H., Lewis, E. N., Spectroscopy Europe 41, 3, 2002 Google Scholar.

6 http://www.spectraldimensions.com

7 Michotte Renier, A, Beaten, V, Sinnaeve, G, Fernandez Pierna, JA and Dardenne, P., J. NIR Spectrosc., in Press