Determination of magnesium and calcium in 30% sodium chloride by ion chromatography with on-line matrix elimination

Autor:	Mark Laikhtman, Jeffrey S. Rohrer, John M. Riviello
Rok vydání:	1998
Předmět:	Chromatography Conductometry Elution Magnesium Sodium Organic Chemistry Ion chromatography chemistry.chemical_element General Medicine Calcium Biochemistry Analytical Chemistry Brine chemistry Magnesium ion
Zdroj:	Journal of Chromatography A. 816:282-285
ISSN:	0021-9673
DOI:	10.1016/s0021-9673(98)00530-5
Popis:	Ion chromatography with on-line matrix elimination reliably determines low microgram-per-litre amounts of magnesium and calcium in brine (30% NaCl). Magnesium and calcium from 100 μl of brine were concentrated on a metal-chelating resin containing iminodiacetate functional groups. After excess sodium was rinsed away, magnesium and calcium were eluted from the metal-chelating column, separated on a cation-exchange column, and detected by suppressed conductivity. This method was reproducible at 5 μg/l magnesium and calcium in brine.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3c158e4cb656b59aa4c9b7959b626fd1 https://doi.org/10.1016/s0021-9673(98)00530-5 Zobrazit plný text záznamu Full Text from ScienceDirect