Determination of Vanadium, Nickel, and Iron in Crude Oil by High-Performance Liquid Chromatography

Autor:	Ali Massoumi, Mozaffar Eslami, Fariba Tadayon
Rok vydání:	1999
Předmět:	Detection limit Chromatography Metal ions in aqueous solution chemistry.chemical_element Vanadium General Medicine Reversed-phase chromatography Resorcinol High-performance liquid chromatography Analytical Chemistry Nickel chemistry.chemical_compound chemistry Liquid–liquid extraction
Zdroj:	Journal of Chromatographic Science. 37:371-374
ISSN:	1945-239X 0021-9665
DOI:	10.1093/chrsci/37.10.371
Popis:	A reversed-phase high-performance liquid chromatography method for the separation and simultaneous determination of vanadium, nickel, and iron is described. The chelates of the metal ions with 4-(2-pyridylazo)resorcinol are separated on a octadecyl-siloxane column with methanol and 0.01M (NH 4)2HPO4‐NH4H2PO4 (35:65, v/v) buffer (pH 6.5) as the mobile phase at a flow rate of 1.0 mL/min. The chelates are detected at 510 nm. The detection limits of vanadium, nickel, and iron are 0.9, 0.4, and 0.7 ng, respectively.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7abca14d6a6e7fa1d19c8dffa437160f https://doi.org/10.1093/chrsci/37.10.371 Zobrazit plný text záznamu