Faculty of Pharmacy, Lj. (FFALJ)
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Določanje površinskih lastnosti z inverzno plinsko kromarografija = Determination of surface properties of solid substances with inverse gas chromatography : diplomska nalogaGoričanec, JanezInverzna plinska kromatografija (IGC - Inverse Gas Chromatography) postaja vsepomembnejsa metoda za doloèanje lastnosti povrsin trdnih snovi. Princip je podoben klasièni plinski kromatografiji. ... Vzorec napolnimo v kolono, nato pa v kolono injiciramo parne faze dobro definiranih tekoèin - standardov. Na osnovidobljenih retencijskih èasov in znanih lastnosti parnih faz tekoèin, odèitanega tlaka na koloni ter temperature kolone izraèunamo parametre proste povrsinske energije.V prvem delu diplomske naloge smo z IGC metodo doloèali povrsinske lastnosti derivatov celuloze. Za polimerne spojine je znano, da jihz IGC metodo tezko analiziramo s klasiènim pristopom, kjer prasek razredèimo s kromosorbom in ga napolnimo v kolono. Zato smo pripravili raztopine polimerov s katerimi smo oblagali kromosorb. Analizirali smo pet razliènih vzorcev derivatov celuloze (HEC, HPC, K4M, K4M CR in K100M).Glede navrednosti Ka in Kd navedenih vzorcev lahko sklepamo, da so povrsine hidroksietil celuloze in hidroksipropilmetil celuloz elektron donorji oz. Lewisove bazeč povrsina hidroksipropil celuloze pa elektron akceptor oz. Lewisova kislina. Vzorec K100M ima najvisjo vrednost Žsd (23,2 mJm-2). V drugem delu diplomske naloge smo s prouèevanjem razliènih zdravilnih uèinkovinin pomoznih snovi, ki se uporabljajo pri tabletiranju, zeleli ovrednotiti razlike med povrsinami teh substanc, da bi lahko napovedali mozne interakcije pri izdelavi fizikalnih zmesi. Analizirali smo stiri zdravilne uèinkovineČ amlodipinijev besilat, hidroklorotiazid, kalijev losartanatType of material - undergraduate thesisPublication and manufacture - Ljubljana : [Goričanec J.], 2003Language - slovenianCOBISS.SI-ID - 1268593
Author
Goričanec, Janez
Other authors
Srčič, Stanko |
Planinšek, Odon |
Pečar, Slavko |
Kristl, Albin
Topics
površinska napetost |
IGC |
inverzna plinska kromatografija |
metode |
analiza
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Knjižnica dp 0000000542 Goričanec Janez Določanje IN: 0006820 Knjižnica dp 542 Goričanec Janez Določanje IN: 0006820 |
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Year | Impact factor | Edition | Category | Classification | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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DRS, in which the journal is indexed
Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Srčič, Stanko | 09031 |
Planinšek, Odon | 14935 |
Pečar, Slavko | 03070 |
Kristl, Albin | 11122 |
Source: Personal bibliographies
and: SICRIS
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