. 2010 Apr 13;7(4):1681–1693. doi: 10.3390/ijerph7041681
© 2010 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 6.
Chromatogram of PPD in black henna sample 6.