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Orientador(es)
Resumo(s)
A flow system using the sample as the carrier
with a propulsion device located after the detector is presented.
This approach allows the correction of the intrinsic
color of the sample, as it provides baseline adjustment
for each sample. A confluence situated just after the selection
valve allows the sample composition to be adjusted
for the colorimetric measurement. The developed methodology
was applied to the colorimetric determination of total
Fe and Cr (VI) in wastewaters at 0.1–6.0 mg L–1 and
0.03–1.0 mg L–1, respectively. RSDs lower than 3% and a
sampling rate of approximately 40 h–1 were obtained
Descrição
Palavras-chave
Flow system Total iron Chromium (VI) Blank correction Wastewaters
Contexto Educativo
Citação
MORAIS, I.P.A.; SOUTO, M.R:S.; RANGEL, A. O. S. S. - determination of total iron and chromium (VI) in wastewaters. Analytical and Bioanalytical Chemistry.ISSN 1618-2642. Nº 373 (2002), p.119–122
Editora
Springer-Verlag