The need for 2-D correlation in NIR spectroscopy

Barton, Franklin E.; Himmelsbach, David S.
March 2000
AIP Conference Proceedings;2000, Vol. 503 Issue 1, p163
Academic Journal
Two-dimensional (2-D) vibrational correlation spectroscopy has now advanced to the stage of realizing many of its touted advantages. Those advantages primarily are: elucidation of chemical interactions of functional groups, simplification of complex spectra, enhancement of spectral resolution by spreading over the second dimension and establishing unambiguous assignments through cross-correlation. Three basic methods have been employed to attain these advantages: dynamical correlation, statistical correlation and canonical correlation analysis. The most popular of these has been dynamical correlation which requires a perturbation due to some stimulus that results in time-dependent fluctuations of spectra. These types of correlations may be applied to almost any form of spectroscopy, yet they have mostly been applied to what may be considered to be forms of high resolution spectroscopic methods, NMR and mid-infrared (MIR) spectroscopy. However, their usage is even more necessary in low resolution forms of spectroscopy. Near-infrared (NIR) spectroscopy is a good example of such a low resolution form for which 2-D correlation spectroscopy is almost required in order to understand the interactions of fundamental vibrations originating in the MIR region. Also, NIR bands often display anharmonic effects making band assignments extremely difficult. There have been limited applications of 2-D correlation to NIR spectroscopy, but there is a need for many more. The results of some applications will be discussed, along with the future potential of this technique in NIR spectroscopy. © 2000 American Institute of Physics.


Related Articles

  • The Paracetamol Adsorption Behaviour Monitored by Raman and Surface-Enhanced Raman Spectroscopy. Andronie, L.; Canta, S.; Cozar, O. // AIP Conference Proceedings;5/17/2009, Vol. 1131 Issue 1, p191 

    Paracetamol pharmaceutically, was found to be detectable by the micro-Raman of the tablet, in spite of the different excipients, which are used in drugs preparation. A strong chemical interaction of the paracetamol with the silver colloidal particles was observed at micromolecule concentrations....

  • Study of the stability of a paramagnetic label linked to... Mollo, Laura; Levresse, Valerie; Ottaviani, Maria F.; Ellouck-Achard, Sophie; Jaurand, Marie-Claude; Fubini, Bice // Environmental Health Perspectives Supplements;Sep97 Supplement 5, Vol. 105, p1031 

    Explores methods to employ nitroxide spin labels linked to silica-based particles or fibers in the investigation of biopersistence of the outmost particle surface layers. Early response of cells to toxicity; Methods in investigating cell-particle interactions; Qualitative results of the...

  • High resolution photoemission spectroscopy: Evidence for strong chemical interaction between Mg and 3,4,9,10-perylene-tetracarboxylic dianhydride. Gavrila, G.; Zahn, D. R. T.; Braun, W. // Applied Physics Letters;10/16/2006, Vol. 89 Issue 16, p162102 

    The interface formation between Mg and 3,4,9,10-perylene-tetracarboxylic dianhydride (PTCDA) was investigated by high resolution soft x-ray photoemission spectroscopy. The interface chemistry was obtained after fitting the core level spectra as a function of Mg thickness. At the initial stage of...

  • Tracking of Chromium in Plasma co-Melting of Fly Ashes and Sludges. Tuan, Yeu-Juin; Wang, H.; Chang, Juu-En // Water, Air & Soil Pollution;Sep2012, Vol. 223 Issue 8, p5283 

    Leachable chromium in the incineration fly ash and wastewater sludge has been thermally stabilized by plasma melting at the temperature of 1,773 K. To better understand how chromium is stabilized with the high-temperature treatment, chemical structure of the slags sampled at temperature zones of...

  • Physiological modeling of toxicokinetic interactions: Implications for mixture risk assessment. Haddad, Sami; Krishnan, Kannan // Environmental Health Perspectives Supplements;Dec98 Supplement 6, Vol. 106, p1377 

    Focuses on the use of physiological modeling of toxicokinetic interactions. Development of mathematical descriptions of the interrelationships among the determinants of toxicokinetics and toxicodynamics; Extrapolation of the occurrence of interactions from binary to multichemical mixtures.

  • The Slow Poisoning of Bangladesh. Josephson, Julian // Environmental Health Perspectives;Nov2002, Vol. 110 Issue 11, pA690 

    Reports on the study conducted by a research team from the Toronto, Ontario-based Hospital for Sick Children, focusing on poisoning with arsenic and other toxic elements in groundwater in Bangladesh. Background on arsenic contamination of groundwater in Bangladesh; Symptoms of toxic metal...

  • Table_of_Contents.  // Toxicological Sciences;May2013, Vol. 133 Issue 1, pNP 

    No abstract available.

  • Preface. Park, Sang-Eon // Research on Chemical Intermediates;2008, Vol. 34 Issue 8/9, p661 

    The article presents a preface to volume 35, 2009 issue of the periodical "Resaerch on Chemical Intermediates".

  • Mineral properties and their contributions to particle... Guthrie Jr., George D. // Environmental Health Perspectives Supplements;Sep97 Supplement 5, Vol. 105, p1003 

    Focuses on a number of mineralogical properties that affect how a mineral interacts with its environment. Mineralogical properties that are important in toxicity; Structure and composition of the minerals; Significance of particle morphology; Principal ways in which a mineral can interact with...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics