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2 results on '"spectrophotometric Cr(VI) determination"'

1. Construção e aplicação de uma cela espectrofotométrica de camada delgada para análises em fluxo Construction and application of a thin layer spectrophotometric cell for flow analysis

Author

Paulo C. C. de Oliveira, Vitor J. P. Gouveia, and Jorge C. Masini

Subjects
thin layer cell, spectrophotometric Cr(VI) determination, steel samples, Chemistry, QD1-999
Abstract

A low cost spectrophotometric cell for use in flow analysis was manufactured in acrylic and adapted to a commercial spectrophotometer. The application of this cell was performed in the determination of chromium (VI) in steel samples using the reaction with the alkaloid brucine in presence of oxalic acid and 0.6 mol L-1 sulfuric acid. The cell allows an enlarged analytical range, diminishing the extension of dilutions, which is useful for on-line monitoring of industrial processes.

Published
2001
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2. Construção e aplicação de uma cela espectrofotométrica de camada delgada para análises em fluxo

Author

Vitor J. P. Gouveia, Paulo C. C. Oliveira, and Jorge C. Masini

Subjects
chemistry.chemical_compound, Chromium, Brucine, steel samples, Chemistry, Oxalic acid, Analytical chemistry, chemistry.chemical_element, spectrophotometric Cr(VI) determination, Sulfuric acid, thin layer cell, General Chemistry, Nuclear chemistry
Abstract

A low cost spectrophotometric cell for use in flow analysis was manufactured in acrylic and adapted to a commercial spectrophotometer. The application of this cell was performed in the determination of chromium (VI) in steel samples using the reaction with the alkaloid brucine in presence of oxalic acid and 0.6 mol L-1 sulfuric acid. The cell allows an enlarged analytical range, diminishing the extension of dilutions, which is useful for on-line monitoring of industrial processes.

Published
2001

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