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Evidence-Based Complementary and Alternative Medicine
Volume 2015 (2015), Article ID 450547, 10 pages
http://dx.doi.org/10.1155/2015/450547
Research Article

Determination of Oleanolic and Ursolic Acids in Hedyotis diffusa Using Hyphenated Ultrasound-Assisted Supercritical Carbon Dioxide Extraction and Chromatography

1Department of Environmental Engineering & Science, Chia Nan University of Pharmacy and Science, Tainan 71710, Taiwan
2Department and Graduate Institute of Pharmacology, Kaohsiung Medical University, Kaohsiung 80708, Taiwan

Received 8 June 2014; Revised 15 November 2014; Accepted 17 November 2014

Academic Editor: Shilin Chen

Copyright © 2015 Ming-Chi Wei et al. 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.

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