Affordable Access

Publisher Website

1H NMR and UV-visible data fusion for determining Sudan dyes in culinary spices

Authors
Journal
Talanta
0039-9140
Publisher
Elsevier
Publication Date
Volume
84
Issue
3
Identifiers
DOI: 10.1016/j.talanta.2011.02.014
Keywords
  • Variable Level Data Fusion
  • Decision Level Data Fusion
  • Uv-Visible
  • 1H Nmr
  • Fuzzy Aggregation Connectives
  • Food Adulteration

Abstract

Abstract Two data fusion strategies (variable and decision level) combined with a multivariate classification approach (Partial Least Squares-Discriminant Analysis, PLS-DA) have been applied to get benefits from the synergistic effect of the information obtained from two spectroscopic techniques: UV-visible and 1H NMR. Variable level data fusion consists of merging the spectra obtained from each spectroscopic technique in what is called “meta-spectrum” and then applying the classification technique. Decision level data fusion combines the results of individually applying the classification technique in each spectroscopic technique. Among the possible ways of combinations, we have used the fuzzy aggregation connective operators. This procedure has been applied to determine banned dyes (Sudan III and IV) in culinary spices. The results show that data fusion is an effective strategy since the classification results are better than the individual ones: between 80 and 100% for the individual techniques and between 97 and 100% with the two fusion strategies.

There are no comments yet on this publication. Be the first to share your thoughts.