. 2009 Jun 24;14(6):2286–2305. doi: 10.3390/molecules14062286
© 2009 by the authors;
licensee Molecular Diversity Preservation International, Basel, Switzerland. This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
Figure 10.
Photographs of samples kept at 150 °C.