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.
Garrido Frenich A, Aguilera-Luiz Mdel M, Martínez Vidal JL, Romero-González R.Garrido Frenich A, et al.Anal Chim Acta. 2010 Feb 28;661(2):150-60. doi: 10.1016/j.aca.2009.12.016. Epub 2009 Dec 21.Anal Chim Acta. 2010.PMID: 20113729