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Volume 2008 (2008), Article ID 152607
doi:10.3814/2008/152607
Research Article

Aromatic Herbal Products Analysis by Laser-Induced Breakdown Spectroscopy

Jesús Anzano,1 Beatriz Bonilla,1 Beatriz Montull-Ibor,1 and Justiniano Casas2
1Laser Laboratory & Environment Group, Department of Analytical Chemistry, Faculty of Sciences, University of Zaragoza, Pedro Cerbuna #12, 50009 Zaragoza, Spain
2Department of Condensed Matter Physics, Faculty of Sciences, University of Zaragoza, Pedro Cerbuna #12, 50009 Zaragoza, Spain
  • Received 2008-05-23
  • Revised 2008-08-07
  • Accepted 2008-09-19

Abstract

Quick online classification allows the installation of the equipment in the line of work. In this sense, the laser-induced breakdown spectroscopy (LIBS) technique offers all the possible advantages: speed, possibility of online analysis, nondestructive, and so on. For the present work, a 350 mJ laser and Mechelle spectrograph were used. Analysis of the data with principal component analysis (PCA) allows an automatic classification of the aromatic herbal products like tea and camomile in a nondestructive and fast way.