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
. 1975 Dec 10;115(1):87-92.
doi: 10.1016/s0021-9673(00)89019-6.

The determination of hydralazine in plasma by gas-liquid chromatography

The determination of hydralazine in plasma by gas-liquid chromatography

D B Jack et al. J Chromatogr. .

Abstract

A description is given of a gas chromatographic method for the determination of hydralazine in plasma. On treatment with nitrous acid, hydralazine is converted into tetrazolo[1,5-a]phthalazine, a stable compound that can be extracted from biological material with organic solvent and determined quantitiatively by gas-liquid chromatography. The 4-methyl analogue of hydralazine serves as internal standard for derivatization, extraction and gas chromatography. The sensitivity (10 ng per ml of plasma) is sufficient to monitor plasma levels in man after administration of single oral doses of 50 mg of Apresoline¿. The known metabolites do not interfere.

PubMed Disclaimer

Similar articles

Cited by