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National Repository of Grey Literature 117 records found  beginprevious116 - 117  jump to record: Search took 0.00 seconds. 
Analysis of milk by ICP-OES technique
 Kaňová, Veronika ; Hrstka, Miroslav (referee) ; Diviš, Pavel (advisor)
The theoretical part of the thesis deals with the chemical composition of cow’s milk, with the description of chosen methods of sample pretreatment and with the description of the used technique ICP-OES. The practical part is aimed at individual preparations of samples and at analysis of chosen chemical elements (Ca, Na, K, Mg a P). Milk is a really complicated polydisperse system. The preparation of samples with milk is very important step before the measurement itself. In the thesis a comparison of four selected methods of sample preparation was made: bare dilution, dilution with addition of Triton X 100, wet ashing and sonication. Selected elements were analysed with the help of ICP-OES. Final concentrations were compared with CRM of dried milk. Data showed that the most accurate are methods of preparation of diluted sample and wet ashing. Four different types of milk were analysed with the help of those two selected methods. The diluted samples showed a bigger anomaly of measuring than the mineralization of wet ashing which came to the loss of analyte because of fat elements contained in milk.
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Analysis of germanium in food
 Musilová, Petra ; Moos, Martin (referee) ; Diviš, Pavel (advisor)
This bachelor‘s thesis deals with chemical, physical and medical characteristics of germanium. It also describes suitable analytical methods for determination of germanium.
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National Repository of Grey Literature : 117 records found   beginprevious116 - 117  jump to record:
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