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International Journal of Analytical Chemistry
Volume 2010, Article ID 149895, 9 pages
Research Article

Discriminant Analysis of Undaria pinnatifida Production Areas Using Trace Elemental Analysis

Department of Chemical Engineering, Ichinoseki National College of Technology, Hagisho, Ichinoseki, Iwate 021-8511, Japan

Received 8 June 2009; Revised 2 November 2009; Accepted 13 February 2010

Academic Editor: Richard G. Brereton

Copyright © 2010 Mikio Kaihara. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Increasingly, attention is being paid to declaring the origin of agricultural and marine products after the advent of the bovine spongiform encephalopathy (BSE; commonly known as mad-cow disease). The display of the production centers on U. pinnatifida has been required in Japan since 2006. As an example of testing in another marine product, near-infrared spectra (NIR) and trace elemental analysis of U. pinnatifida are proven effective methods for discriminating production centers by us and Food and Agricultural Materials Inspection Center (FAMIC). In the present study, we found that X-ray fluorescence analysis of Br was also effective for the discrimination of production centers. The results of our study suggest that a combination of NIR and X-ray fluorescence analysis is a convenient and efficient method for determination due simple sampling procedures and increased effectiveness.