Chelidamic acid as a new eluent for the determination of Fe(II) and Fe(III) species and other metals by high performance chelation ion chromatographyстатья
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Дата последнего поиска статьи во внешних источниках: 24 марта 2017 г.
Авторы:
Dias J.C. ,
Kubota L.T. ,
Nesterenko P.N. ,
Haddad P.R.
Журнал:
Chromatographia
Том:
75
Номер:
15-16
Год издания:
2012
Издательство:
Elsevier BV
Местоположение издательства:
Netherlands
Первая страница:
867
Последняя страница:
873
DOI:
10.1007/s10337-012-2265-x
Аннотация:
The chelidamic acid (CDA) is proposed as a new eluent reagent in high performance chelation ion chromatography for the simultaneous isocratic separation of Fe 2+ and Fe 3+, Mn 2+, Pb 2+, Cd 2+, Zn 2+, Co 2+ and Cu 2+ on an iminodiacetic acid functionalized silica column 150 × 4.0 mm i.d., with an optimized eluent composed of 2 mmol L -1 CDA, 3 mmol L -1 triethanolamine, 12 mmol L -1 HCl, and 50 % v/v of methanol at flow rate of 0.5 mL min -1. Post-column reaction with 4-(2-Pyridylazo) resorcinol (PAR) was used for sensitive spectrophotometric detection at 510 nm. The developed method is suitable for the quantitative speciation of iron as well as for the determination of other metals. The applicability of this method to the direct analysis of fuel ethanol was demonstrated. © Springer-Verlag 2012.
Добавил в систему:
Нестеренко Павел Николаевич