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Analysis of main wine saccharides
Horáková, Hana ; Šabata, Pavel (referee) ; Vespalcová, Milena (advisor)
This diploma thesis deals with determination of carbohydrates in wine. Theoretical part attends to production of wine from grape to treatment and training of wine. It refers saccharides in wine, especially glucose and fructose. The study provides an overview of the available sources concerning the possibilities of determination of carbohydrates in wine by chromatographic methods and Skalar automated chemistry analyser. The study shortly refers simple analytical methods for determination of wine saccharides. The experimental part based on this search deals with analysis of saccharides by high performance liquid chromatography with refractive index detector and UV detector on aminoalkyl column and determination of reducting sugars by Skalar automated chemistry analyser. Finally, the results of these methods were compared.
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Conditions of establishing of companies in Russia and the Czech Republic
HORÁKOVÁ, Hana
The purpose of this bachelor work is to outline basic necessities of establishing the most frequent forms of enterprenuering. Conditions for establishing Limited Liability Company and joint-stock company in the Czech Republic and in Russia will be discussed first. This work will then shortly focus on terms for dealershipes and branches. The next part anylyses the prosperity of individual sectors and regions. It presents basic summary of taxes in Russia and it penetrates into numbers of individual incomes. The last section of this work is concentrated on more practical part and the purpose is to indicate specificities of business negotiation with russian partners.
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Podmínky pro vysokou citlivost detekce a separační účinnost při separacích klastrových aniontů boru
Horáková, Hana ; Grüner, Bohumír ; Vespalec, Radim
The knowledge of UV-VIS spectra of investigated compounds is neccessary for the optimisation of detection sensitivity. The symmetry and narrow width of migrating zones require substantially improved dissolving power of the sample solvent and background electrolyte. Sodium borate buffer of pH 9.5 is more proper for separations of boron cluster anions in uncouted capillaries then sodium phosphate buffer of pH of 7. Decrease of mobilities of boron cluster anions with time has been found in chiral separations with .beta-CD if acetonitrile was present in background electrolyte
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