Colorimetric determination of manganese(II) in natural and waste waters after preconcentration on a polymeric adsorbent

Autor:	E. R. Oskotskaya, E. V. Kuznetsov, E. N. Gribanov, N. N. Basargin
Rok vydání:	2011
Předmět:	chemistry.chemical_classification Chromatography Metal ions in aqueous solution Relative standard deviation chemistry.chemical_element Manganese Polymer Polymeric adsorbent Analytical Chemistry Adsorption chemistry Standard addition Field conditions Nuclear chemistry
Zdroj:	Journal of Analytical Chemistry. 67:35-40
ISSN:	1608-3199 1061-9348
Popis:	A combined procedure has been developed for the colorimetric determination of manganese(II) in natural and waste waters based on the selective preconcentration of metal ions on a polymer complexing adsorbent,—polystyrene-2-oxy-〈1-azo-1′〉-2′-oxy-3′-sulfo-5′-nitrobenzene, followed by the digital detection of the analytical signal. Manganese(II) is extracted (95–100%) in the batch mode in the pH range from 4.9 to 6.8. The determination is not interfered by n × 105-fold excess (by weight) of K, Na; n × 104-fold excess of Ca, Mg; n × 103-fold excess of Ba, Sr, Al, Fe(III); n × 102-fold excess of Ti(IV), Ni, Co, Zn, Pb, Cu. The accuracy of the procedure has been examined by the standard addition method. The relative standard deviation varies from 9 to 16%. The advantages of the procedure include simplicity, availability of the apparatus, rapidity, and the possibility of its application in field conditions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f7ea563bb79e250d33bdff9e687e6598 https://doi.org/10.1134/s1061934812010042 Zobrazit plný text záznamu Full text from SpringerLink