Construção e aplicação de uma cela espectrofotométrica de camada delgada para análises em fluxo

Química Nova

Paulo C. C. De Oliveira¹  Vitor J. P. Gouveia¹  Jorge C. Masini¹ 

[1] ,Universidade de São Paulo Instituto de Química São Paulo SP

关键词: thin layer cell;    spectrophotometric Cr(VI) determination;    steel samples;   

DOI  :  10.1590/S0100-40422001000300017

来源: SciELO

【 摘 要 】

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.

【 授权许可】

CC BY-NC   
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