Pyrocatechol Violet in new optical methods for determining aluminumстатья
Информация о цитировании статьи получена из
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:The complexation of aluminum with Pyrocatechol Violet in the absence or presence of cetyltrimethylammonium bromide was studied; the stoichiometry and chemical analytical properties of the complexes obtained were determined. The optimal conditions (pH and equilibration time) for the preconcentration of aluminum as its complex on Silochrome S-120 and an AV-17 anion-exchanger were found. Concentration factors were at least 67 at a liquid phase volume of 20 mL. Calibration curves were constructed for determining 0.02-0.10 mu g of aluminum in the phase of adsorbent by diffuse reflection spectrometry and chromaticity measurements.