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undergraduate thesis
Određivanje limonena u eteričnim uljima grejpa, mandarine i celera
završni rad
2022. urn:nbn:hr:167:957705
Zelić, Petra
University of Split
Faculty of Chemistry and Technology
Division of Chemistry

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Zelić, P. (2022). Određivanje limonena u eteričnim uljima grejpa, mandarine i celera : završni rad (Undergraduate thesis). Split: University of Split, Faculty of Chemistry and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:167:957705

Zelić, Petra. "Određivanje limonena u eteričnim uljima grejpa, mandarine i celera : završni rad." Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, 2022. https://urn.nsk.hr/urn:nbn:hr:167:957705

Zelić, Petra. "Određivanje limonena u eteričnim uljima grejpa, mandarine i celera : završni rad." Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, 2022. https://urn.nsk.hr/urn:nbn:hr:167:957705

Zelić, P. (2022). 'Određivanje limonena u eteričnim uljima grejpa, mandarine i celera : završni rad', Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, accessed 02 November 2024, https://urn.nsk.hr/urn:nbn:hr:167:957705

Zelić P. Određivanje limonena u eteričnim uljima grejpa, mandarine i celera : završni rad [Undergraduate thesis]. Split: University of Split, Faculty of Chemistry and Technology; 2022 [cited 2024 November 02] Available at: https://urn.nsk.hr/urn:nbn:hr:167:957705

P. Zelić, "Određivanje limonena u eteričnim uljima grejpa, mandarine i celera : završni rad", Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, Split, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:167:957705

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Metadata
TitleOdređivanje limonena u eteričnim uljima grejpa, mandarine i celera : završni rad
Title (english)Determination of limonene in grapefruit, mandarine and celery essential oils : bachelor thesis
AuthorPetra Zelić
MentorFranko Burčul (mentor)
Committee memberMario Nikola Mužek (predsjednik povjerenstva)
Committee memberMiće Jakić (član povjerenstva)
Committee memberFranko Burčul (član povjerenstva)
GranterUniversity of Split
Faculty of Chemistry and Technology
(Division of Chemistry)
Split
Defense date and country2022-09-26, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Abstract
Limonen je predstavnik monoterpenskih ugljikovodika sadržan u eteričnim uljima mnogih citrusa kao njihova glavna okosnica. Zbog izrazitih biokemijskih svojstava, limonen je jaki antioksidans, sastojak je kozmetičkih pripravaka te ostalih sredstava kao što su insekticidi, fungicidi i sl. Ovim radom razvijena je metoda pogodna za određivanje, kako kvalitativno, tako i kvantitativno monoterpena limonena uz korištenje plinske kromatografije uz kvadrupolni analizator masa te su potom određene koncentracije sastojka limonena unutar eteričnih ulja celera, mandarine i grejpa, sve to uz korištenje iste metode. Identificirani su i okarakterizirani specifični prijelazi korištenjem MRM načina snimanja standarda limonena. Pritom je konstruirana krivulja umjeravanja na temelju najpogodnijih specifičnih reakcija prijelaza određenih na temelju optimizacije energije sraza s dušikom za svaki izabrani prijelaz. Koncentracijski raspon korišten za konstruiranje krivulje umjeravanja iznosi 50-2000 µg mL -1 . Analizom realnog uzorka, konkretno eteričnog ulja celera, mandarine i grejpa, određene su koncentracije analita, limonena unutar tih „smjesa“.
Abstract (english)
Limonene is a representative of monoterpene hydrocarbon contained in the essential oils of many citrus fruits as their main component. Due to its distinct biochemical properties, limonene is a strong antioxidant, an ingredient in cosmetics and other product such as insecticides, fungicides, etc. In this thesis a method was developed for qualitative and quantitative determination of monoterpene limonene using gas chromatography with a quadrupole mass analyzer. The concentrations of limonene in the essential oils of celery, grapefruit and mandarine were all determinated using the same method. Specific transitions were identified and characterized using the MRM scanning mode of the limonene standard. A calibration curve was constructed on the basis of the most suitable specific reactions/transiotions which were chosen based on the optimisation of the collision energy with nitrogen for each chosen transition. The concentration range used to construct the calibration curve was 50-2000 µg mL -1 . By analysing a real sample, specifically essential oil of celery, mandarin and grapefruit, the concentrations of limonene were determined.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:167:957705
Study programmeTitle: Chemistry
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) kemije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) kemije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
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Created on2023-01-18 10:19:20