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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
08/10/2008 |
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Data da última atualização: |
18/07/2023 |
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Autoria: |
WILLIAMS, C. H.; DAVID, D. J.; IISMAA, O. |
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Título: |
The determination of chromic oxide in faeces samples by atomic absorption spectrophotometry. |
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Ano de publicação: |
1962 |
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Fonte/Imprenta: |
Journal of Agricultural Science, v. 59, n. 3, p. 381-385, Nov. 1962. |
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DOI: |
https://doi.org/10.1017/S002185960001546X |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: A rapid and accurate atomic absorption method for the determination of chromium in faeces samples from pasture experiments using chromic oxide ?markers? is described. Of the elements present after ashing and digesting the samples in a phosphoric acid?manganese sulphate?potassium bromate solution silicate, aluminium, calcium and magnesium were found to interfere in the determination. The effects of these interferences were overcome by the addition of calcium to the test solution and by the addition of silicate to the standards, which were prepared in ?blank? solutions. The sensitivities of a number of alternate chromium resonance lines relative to that of Cr 3578·7 Å. are given. These lines may be used to increase the concentration range of the analysis. The results of a comparison of the atomic absorption method with a chemical method are given. |
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Palavras-Chave: |
Analysis; Spectrophotometry. |
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Thesagro: |
Análise; Animal; Digestão; Digestibilidade; Nutrição. |
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Thesaurus Nal: |
Analytical methods; Chemical analysis; Digestibility; Digestion; Nutrition; Spectroscopy. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 01769naa a2200313 a 4500
001 1533770
005 2023-07-18
008 1962 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1017/S002185960001546X$2DOI
100 1 $aWILLIAMS, C. H.
245 $aThe determination of chromic oxide in faeces samples by atomic absorption spectrophotometry.$h[electronic resource]
260 $c1962
520 $aAbstract: A rapid and accurate atomic absorption method for the determination of chromium in faeces samples from pasture experiments using chromic oxide ?markers? is described. Of the elements present after ashing and digesting the samples in a phosphoric acid?manganese sulphate?potassium bromate solution silicate, aluminium, calcium and magnesium were found to interfere in the determination. The effects of these interferences were overcome by the addition of calcium to the test solution and by the addition of silicate to the standards, which were prepared in ?blank? solutions. The sensitivities of a number of alternate chromium resonance lines relative to that of Cr 3578·7 Å. are given. These lines may be used to increase the concentration range of the analysis. The results of a comparison of the atomic absorption method with a chemical method are given.
650 $aAnalytical methods
650 $aChemical analysis
650 $aDigestibility
650 $aDigestion
650 $aNutrition
650 $aSpectroscopy
650 $aAnálise
650 $aAnimal
650 $aDigestão
650 $aDigestibilidade
650 $aNutrição
653 $aAnalysis
653 $aSpectrophotometry
700 1 $aDAVID, D. J.
700 1 $aIISMAA, O.
773 $tJournal of Agricultural Science$gv. 59, n. 3, p. 381-385, Nov. 1962.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
