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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Technical aspects of measurement using IR spectrophotometer Buck 500
 STEHLÍK, Radim
The work deals with IR spectrophotometry and technical aspects of IR spectrophotom-eter Buck 500. The first chapter of the theoretical part is dedicated to textiles produced from natural fibres. The chapter carries out a survey concerning cotton measured further in the experimental part. The second chapter describes IR spectrophotometry principle. It brings the basic terminology, for instance transmittance, absorbance, wavelength, wave-speed, etc. The next chapter of the theoretical part is focused on the description of basic components of IR spectrophotometer Buck 500. The theoretical part further explains the methods used for analysis of solid agents (KBr, ATR). The experimental part provides a comprehensive overview on how to install, operate and maintain the instrument as well as its compatibility with IT technology. It further describes the process of gaining spectra using GRAMS/AI programmes. The next chapter describes the spectra measurement methods on IR spectrophotometer Buck 500. The work mentions the process of KBr tablets production. The last chapter deals with the evaluation and interpretation of individual spectra based on the number of peaks with respect to wave-speed. The final part points out the difference between modified and non-modified cotton.
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Plasma modification of materials for medical purposes
 MATĚJÍČEK, Jan
This diploma thesis deals with the ongoing research under the auspices of the Department of Applied Physics and Technics Faculty of Education, University of South Bohemia in České Budějovice, in which the author of the work was actively participated. The thesis is divided into theoretical and experimental part. The theoretical part contains information from natural polymers, especially cellulose, plasma technology and infrared spectrometry. The subject of the experimental part of the thesis is research that deals with the functionalization of cellulose using a microwave plasma discharge on the apparatus CX-22. In the present research was also conducted to process optimization of functionalization with the liquid precursor hexamethyldisiloxane (HMDSO).
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