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.
Tsonev LI, Hirsh AG.Tsonev LI, et al. Among authors: hirsh ag.J Chromatogr A. 2024 Aug 16;1730:465065. doi: 10.1016/j.chroma.2024.465065. Epub 2024 Jun 9.J Chromatogr A. 2024.PMID: 38879974
Hirsh AG, Tsonev LI.Hirsh AG, et al.J Chromatogr A. 2012 May 4;1236:51-62. doi: 10.1016/j.chroma.2012.02.072. Epub 2012 Mar 6.J Chromatogr A. 2012.PMID: 22440667