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Ločba lignanov jelke (Abies alba) s tankoplastno kromatografijo : diplomski projekt = Separation of simple fir lignans (Abies alba) by thin layer chromatography : B. Sc. thesisKosem, JožeRaziskovali smo primeren sistem topil za ločbo lignanov jelke s tankoplastno kromatografijo. Vzorcem grč jelke smo določili delež suhe snovi. S Soxthletovo ekstrakcijo smo ekstrahirali vzorce jelke. ... Prva ekstrakcija je bila s cikloheksanom, druga pa z mešanico acetona in vode v razmerju 95:5. Iz dobljenih ekstraktov smo določili delež suhe snovi v ekstraktu. Opravili smo tudi ekstrakcijo z acetonom, brez predhodne ekstrakcije s cikloheksanom. Dobljene vzorce ekstraktov smo nato nanašali na TLC plošče in jih razvijali v mobilni fazi, za kar smo uporabili diklorometan in etanol v volumskem razmerju 93:7. Za vizualizacijo lis smo uporabili reagent H2SO4 / etanol v volumskem razmerju 50:50. Lisam na kromatogramu smo določili zadrževalni faktor. Na osnovi primerjave naših rezultatov s podatki iz literature smo določili tudi nekatere organske snovi, ki so bile v ekstraktu grč jelke.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [J. Kosem], 2012Language - slovenianCOBISS.SI-ID - 2071945
Author
Kosem, Jože
Other authors
Poljanšek, Ida |
Oven, Primož |
Petrič, Marko, 1962-
Topics
navadna jelka |
Abies alba |
grče |
Soxhlet |
TLC |
lignani |
simple fir |
Abies alba |
knots |
Soxhlet |
TLC |
lignans
Library/institution |
City | Acronym | For loan | Other holdings |
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BF, Department of Wood Science and Technology, Lj. | Ljubljana | BFLES |
reading room 1 cop.
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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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Kosem, Jože | |
Poljanšek, Ida | 12041 |
Oven, Primož | 11223 |
Petrič, Marko, 1962- | 00395 |
Source: Personal bibliographies
and: SICRIS
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