An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Cheng DH, Chen XW, Shu Y, Wang JH.Cheng DH, et al. Among authors: chen xw.Talanta. 2008 Jun 15;75(5):1270-8. doi: 10.1016/j.talanta.2008.01.044. Epub 2008 Feb 1.Talanta. 2008.PMID: 18585212
Du Z, Yu YL, Chen XW, Wang JH.Du Z, et al. Among authors: chen xw.Chemistry. 2007;13(34):9679-85. doi: 10.1002/chem.200700784.Chemistry. 2007.PMID: 17853518