University of North Florida
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Stuart Chalk, Ph.D.
Department of Chemistry
University of North Florida
Phone: 1-904-620-1938
Fax: 1-904-620-3535
Website: @unf

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High purity

Classification: Metal -> aluminum -> high purity

Citations 1

"Simultaneous Determination Of Trace Amounts Of Cobalt And Manganese In High Purity Aluminum By Flow Injection Analysis With Catalytic Method"
Bunseki Kagaku 1988 Volume 37, Issue 7 Pages 360-364
Kitamura, T.;Yamane, T.

Abstract: High purity aluminum was dissolved in HCl and HNO3, the acids were removed by heating and the solution was adjusted to pH 3 with 0.2 M Na tartrate and diluted to 100 mL with water. The solution was injected into the flow system (described) where, after online cation-exchange separation in tartrate - NaCl medium of pH 5.1, Co and Mn catalyzed the oxidation of 3,4-dihydroxybenzoic acid by H2O2 in weakly alkaline medium (Na2CO3). The absorbance was measured at 480 nm. Detection limits were 0.02 and 0.1 µg g-1 in 243 µL of injected solution for Co and Mn, respectively. Interference by other metals was studied. Results agreed well with those obtained by graphite-furnace AAS.
Cobalt Manganese Ion exchange Spectrophotometry Catalysis Indirect Interferences Merging zones Method comparison