Trace elements in bovine muscle: an ongoing project for a new certified reference material

Caroli, Sergio; Spagnoli, Mariangela; Forte, Giovanni; Alessandrelli, M.; Cresti, R.; D’Ilio, Sonia; Pauwels, J.; Kramer, Gary L.; Záray, Gy.

doi:10.1016/s0026-265x(00)00067-9

Cited by 6 publications

(1 citation statement)

References 2 publications

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“…The use of microwave (MW) energy as a means to complete acid-assisted wet digestion of biological tissues is now the norm [2,5,6,[9][10][11][12][13][14]. Although open-vessel MW digestion is popular because of its simplicity and capability to handle larger sample sizes, it suffers from the same drawbacks as conventional methods such as corrosion of equipment, loss of analyte and contamination of the sample [15].…”

Section: Introductionmentioning

confidence: 99%

<b>Slurry nebulization ICP-OES for the determination of Cu, Fe, Mg, Mn and Zn

Mokgalaka

Wondimu

McCrindle

2008

Bull. Chem. Soc. Eth.

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A method that involves analysis of bovine liver by slurry nebulization and ICP-OES has been developed. This method permits rapid and accurate determination of Cu, Fe, Mg, Mn and Zn in bovine liver. Aliquots of freeze-dried and powdered bovine liver sample were dispersed in 2.0 M HNO3 and sonicated to homogenize the resulting slurries. Bovine liver samples were also microwave digested or subjected to aqueous extraction for comparison of analytical results. Concentrations of Cu, Fe, Mg, Mn and Zn in aqueous slurries, the digests, and aqueous extracts were determined by the ICP-OES using external calibration curves. A student's ttest showed that the results obtained using the slurry method were in good agreement at 95 % confidence level (CL) with those of microwave digestion or aqueous extraction techniques, except for Fe. To check the accuracy and precision of the slurry method, a bovine liver CRM was analyzed and good agreement was achieved with the certified values at 95 % CL. The results demonstrate inefficiency of aqueous extraction technique for complete removal of Fe in bovine liver sample.

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Section: Introductionmentioning

confidence: 99%

<b>Slurry nebulization ICP-OES for the determination of Cu, Fe, Mg, Mn and Zn

Mokgalaka

Wondimu

McCrindle

2008

Bull. Chem. Soc. Eth.

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Preparation and characterization of phosphate rock as quality control material

2017

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Magnetic characterisation of rat muscle tissues after subcutaneous iron dextran injection

Lázaro

Abadía

Estrella

et al. 2005

Biochimica et Biophysica Acta (BBA) - Molecular Basis of Diseas

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Ex vivo freeze-dried rat muscle tissues, collected at different times t after a single dose of subcutaneously injected iron dextran, have been magnetically characterised. The AC susceptibility of the tissues shows an overall superparamagnetic behaviour and the dependence on t of, especially, the out-of-phase component is remarkably systematic despite the fact that each tissue originates in a different rat individual. The experiments show that the akaganéite (beta-FeOOH) nanoparticles contained in the injected drug are progressively degraded in the living tissue and, at times of the order of 1 month and for all the analysed rat individuals, converge to a magnetically well-defined species with much narrower magnetic activation energy distribution than iron dextran. Thorough transmission electron microscopy experiments of the same tissues indicate the presence of oxyhydroxide particles, whose size decreases for increasing t in agreement with the interpretation of the magnetic susceptibility. The conclusions drawn from the magnetic study do well correspond to the properties of the whole tissue since no biochemical extraction work has been done. The AC susceptibility appears to be a valuable and complementary tool in pharmacological studies of iron-containing drugs.

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Trace elements in bovine muscle: an ongoing project for a new certified reference material

Cited by 6 publications

References 2 publications

<b>Slurry nebulization ICP-OES for the determination of Cu, Fe, Mg, Mn and Zn

<b>Slurry nebulization ICP-OES for the determination of Cu, Fe, Mg, Mn and Zn

Preparation and characterization of phosphate rock as quality control material

Magnetic characterisation of rat muscle tissues after subcutaneous iron dextran injection

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