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ICP OES Analysis of Multivitamin Preparations
Year: 2004
Type of publication: článek ve sborníku
Name of source: Book of Abstract - XVIIth Slovak Spectroscopis Conference, 5.-9.9.2004, Tatranské Zruby
Publisher name: Technická univerzita v Košiciach
Place: Košice
Page from-to: 29
Titles:
Language Name Abstract Keywords
cze ICP OES analýza multivitamínových preparátů ICP OES analýza multivitamínových preparátů multivitamin preparations, ICP OES, elemental analysis, slurry
eng ICP OES Analysis of Multivitamin Preparations Vitamins and minerals are necessary for the normal functioning of the body. Owing to increasing ratio of brainwork, man physical activity and feed consumption have decreased and nutrient uptake is insufficient. Many people take a multivitamin as a 'safety net' to protect them from deficiency and disease. In feed supplements, producers declare lists of components contained but do not ensure their content. For a control of technological process and evaluation of final products quality, a reliable analytical method for determination of multivitamin components is necessary. The paper deals with elemental analysis (Ca, K, Mg, Fe, P, Mn, Zn, Cu, Cr, Ni and V) of multivitamin preparations and food supplements by means ICP OES. Four procedures of sample preparation before analysis were compared: the total microwave decomposition, open wet digestion, ultrasound assisted extraction and slurry treatment. For solution and slurry analysis of these elements, methodology was elaborated. According to any multivitamin matrix reference material is not offered, the ?in-home? reference material were made from multivitamin preparation ?Centrum ? Od A až po Železo?. The accuracy of the study was validated using this material and comparing our results with other laboratories. Ordinary available on pharmaceutical market, some arbitrarily chosen multivitamin preparations were analysed using slurry ICP OES and results found were compared with declared amounts. The information obtained for composition of elements in multivitamin preparations will be used for a further development of X-ray methodology for elemental analysis of these materials. multivitamin preparations, ICP OES, elemental analysis, slurry

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