Developing a highly selective method for preconcentration and determination of cobalt in water and nut samples using 1‐(2‐pyridylazo)‐2‐naphthol and UV–visible spectroscopy

BACKGROUND Heavy metal contamination in water and agricultural products is a major concern that causes risks for human health. This article describes a highly selective approach to preconcentrate cobalt(II) (Co(II)) ions based on the standard UV–visible measurement of Co(II)–1‐(2‐pyridylazo)‐2‐napht...

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Veröffentlicht in:	Journal of the science of food and agriculture 2020-03, Vol.100 (5), p.2272-2279
Hauptverfasser:	Eskandarpour, Maryam, Jamshidi, Parastoo, Moghaddam, Mohammad Reza, Ghasmei, Jahan B, Shemirani, Farzaneh
Format:	Artikel
Sprache:	eng
Schlagworte:	1‐(2‐pyridylazo)‐2‐naphthol Adsorption Agricultural pollution Agricultural products Co(II) Cobalt Contamination Desorption Elution Fe3O4/SiO2 Fourier transforms Health risks Heavy metals Infrared spectroscopy Ions Ligands Linearity magnetic solid‐phase extraction Naphthol nut sample analysis Nuts Order parameters pH effects Pyridylazonaphthol Reliability aspects Scanning electron microscopy Selectivity Silica Silicon dioxide Sorbents Spectrum analysis water analysis Water pollution
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