Flow procedure for ion-exchange preconcentration and on-line spectrophotometric determination of iron(III) as its thiocyanate complex

Autor:	Ala'ddin M. Almuaibed, Alan Townshend
Rok vydání:	1995
Předmět:	Detection limit Chromatography medicine.diagnostic_test Thiocyanate Ion exchange Calibration curve Biochemistry Analytical Chemistry chemistry.chemical_compound chemistry Spectrophotometry medicine Trace analysis Ion-exchange resin Line (formation)
Zdroj:	Fresenius' Journal of Analytical Chemistry. 352:601-602
ISSN:	1618-2650 0937-0633
DOI:	10.1007/bf00323083
Popis:	On-line ion-exchange preconcentration of iron(III) on a conventional cation exchange resin with spectrophotometric detection based on thiocyanate complexation is described. The calibration graph is linear over the range 0.01–0.2 μg ml−1 and the detection limit (3 σ) is 6 ng ml−1 for a 6-ml sample. No interference effects were detected. The recovery of iron from the resin is 95%. 12 samples h−1 can be analysed.
Databáze:	OpenAIRE
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