Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

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.

Https

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.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1974 Apr;20(4):440-3.

Gas-liquid chromatographic procedure for measurement of methylphenidate hydrochloride and its metabolite, ritalinic acid, in urine

R Wells, K B Hammond, D O Rodgerson
  • PMID: 4818196

Gas-liquid chromatographic procedure for measurement of methylphenidate hydrochloride and its metabolite, ritalinic acid, in urine

R Wells et al. Clin Chem. 1974 Apr.
No abstract available

PubMed Disclaimer