Use of Dendrograms of Slice Spectra as a New Graphical Tool for the Interpretation of Two-Dimensional Correlation Spectra

$29.00 plus tax (Refund Policy)

Buy Article:

Abstract:

In this paper a procedure is established to identify spectral bands that show similar behavior in two-dimensional correlation spectra. Slice spectra of bands that are affected in a single spectral event are highly similar. It is shown that this can be used to simplify the interpretation of two-dimensional (2D) correlation diagrams. One functional group frequently gives rise to multiple spectral bands in a Raman spectrum. In such occasions, the sequential order rules assign a sequential order, which is invalid, to the changes in these bands. We therefore apply cluster analysis to the slice spectra of bands with intensity changes during the experiment. Results indicate that cluster analysis of selected slice spectra can help in the interpretation of 2D correlation spectra in an intuitive and graphical way. The procedure should be used together with the widely used sequential order rules to determine the order of spectral events. The procedure enabled us to reveal the reaction steps in two simulated datasets and a dataset that comprises Raman spectra of oxidating latex of Lactarius fluens (Basidiomycota, Fungi).

Keywords: 2D CORS; CLUSTER ANALYSIS; RAMAN SPECTROSCOPY; REACTION; SIMULTANEITY; SPECTRAL CHANGES; SPECTRAL INTERPRETATION; TWO-DIMENSIONAL CORRELATION ANALYSIS

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/000370209787169812

Affiliations: 1: Ghent University, Department of Analytical Chemistry, Proeftuinstraat 86, 9000 Ghent, Belgium 2: Ghent University, Department of Archaeology and Ancient History of Europe, Blandijnberg 2, 9000 Ghent, Belgium 3: Ghent University, Department of Biology, K.L. Ledeganckstraat 35, 9000 Gent, Belgium

Publication date: January 1, 2009

More about this publication?
Related content

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more