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Adsorptive stripping voltammetry for determination of trace amounts of aluminum with calmagite
Author(s) -
Stryjewska Ewa,
Rubel Stanislaw
Publication year - 1991
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.1140030919
Subject(s) - chemistry , stripping (fiber) , acetic acid , copper , trace amounts , buffer solution , electrolysis , nuclear chemistry , hydroxylamine hydrochloride , acetic anhydride , inorganic chemistry , hydroxylamine , aluminium , chromatography , electrolyte , electrode , materials science , catalysis , alternative medicine , medicine , biochemistry , organic chemistry , pathology , composite material
Experimental parameters for determination of aluminum (up to 15 ppb) were evaluated in acetate (pH = 4.2) and borate (pH = 8.9) buffer solutions. Because the reaction of Calmagite in acetate buffer requires heating (10 min, 90°C) the total analysis time is relatively long. This inconvenience is circumvented by using a borate buffer. The complexation reaction is nonspecific in both media. Iron(III) should be reduced using hydroxylamine hydrochloride, whereas copper(II) and some other metals may be eliminated by electrolysis. The developed method was used for aluminum determination in reference material—flour V‐8 (IAEA‐Vienna), tap water, and commercial 4% acetic acid before and after boiling in an aluminum pot.