On photometric determination of magnesium in biological products

Authors

  • Rubens Salomé Pereira Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Zoologia Médica e Parasitologia, São Paulo, SP

DOI:

https://doi.org/10.11606/issn.2318-5066.v3i1/2p83-99

Keywords:

The article has no key-words.

Abstract

A method for the photometric determination of magnesium based on the precipitation of this element with 8-hydroxyquinoline was studied. A number of interfering ions are precipitated as the oxinate in a acetic acid-sodium acetate buffered solution. Calcium is separated as the oxalate at pH — 4.5-5.3 and the washed magnesium oxinate is dissolved in hydrochloric acid, coupled with diazotized naphthionic acid to a permanganate colored stuff. The photometric measurements are made with the Zeiss-Pulfrich step-photometer, with the use of filter S-50. Comments are made on the method.

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Published

1945-12-15

Issue

Vol. 3 No. 1/2 (1945)

Section

UNDEFINIED

How to Cite

On photometric determination of magnesium in biological products. (1945). Revista Da Faculdade De Medicina Veterinária, Universidade De São Paulo, 3(1/2), 83-99. https://doi.org/10.11606/issn.2318-5066.v3i1/2p83-99