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.
Neng NR, Silva AR, Nogueira JM.Neng NR, et al.J Chromatogr A. 2010 Nov 19;1217(47):7303-10. doi: 10.1016/j.chroma.2010.09.048. Epub 2010 Sep 24.J Chromatogr A. 2010.PMID: 20950811
Ahmad SM, Almeida C, Neng NR, Nogueira JM.Ahmad SM, et al.J Chromatogr B Analyt Technol Biomed Life Sci. 2014 Oct 15;969:35-41. doi: 10.1016/j.jchromb.2014.07.040. Epub 2014 Aug 4.J Chromatogr B Analyt Technol Biomed Life Sci. 2014.PMID: 25156963