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National Repository of Grey Literature

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Analysis of nicotin content in some products Pražáková, Jana ; Kočí, Radka (referee) ; Márová, Ivana (advisor) This diploma thesis deals with the determination of nicotine in different products. The theoretical part summarizes review on nicotine, smoking and opportunities how to quit. In the practical part a method for the determination of nicotine by HPLC / PDA was optimized. As the most suitable stationary phase was selected a Kinetex 5u C18 100A 150 x 4.6 mm column, as the optimal mobile phase was chosen a pure methanol with a flow rate of 1 ml min-1 and a temperature of 25 °C. For the analysis of nicotine were chosen: 18 kinds of cartridges for electronic cigarettes, two kinds of nicotine gum, nicotine spray, nicotine pastilles, nicotine orodispersible film and ten species of classic cigarettes. For each type of product the most appropriate method for extracting nicotine and its subsequent analysis by HPLC / PDA was found. For tobacco 24 hour extraction in methanol and 10s ultrasound was selected. The nicotine spray and electronic cigarette refills without flavours were only diluted with methanol. Flavoured refills were first diluted by sodium hydroxide and then with methanol. For chewing gums, pastilles and nicotine film extraction with 5% sodium hydroxide was chosen. In this study also new experimental nicotine product was designed. Nicotine has been encapsulated in alginate-starch material to form small gel particles. As the most suitable medium for storage the water medium was determined. Detailed record

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