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Advisor(s)
Abstract(s)
Two flow injection systems for the
determination of total phosphorus in
milk were developed: one for the determination
of phosphorus using offline
digestion of milk and another with
in-line digestion. The first procedure
involves a classical Kjeldahl digestion
of milk prior to introducing it into the
flow system; the second uses acid, heat
and UV-catalysed peroxodisulphate
oxidation to convert in-line all forms
of phosphorus compounds into orthophosphate,
allowing a considerable
amount of time to be saved. Concentrations
of phosphorus in milk withinthe range of 706 to 984 mg P/L were
found and FIA results were in good
agreement with those provided by the
reference method.
Description
Keywords
Pedagogical Context
Citation
LIMA, M. J. Reis; FERNANDES, S. M. V.; RANGEL, A. O.S.S. - Colorimetric determination of phosphorus in milk by flow injection analysis using a thermal/uv induced digestion. Italian Journal of Food Science. ISSN 1996-2010. Vol. 14, n.º 1 (2002), p. 9-16
Publisher
Chiriotti, Pinerolo