| | SLO | ENG | Cookies and privacy

Bigger font | Smaller font

Show document

Title:DOLOČANJE POLICIKLIČNIH AROMATSKIH OGLJIKOVODIKOV V ZEMLJI
Authors:Žnidar, Natalija (Author)
Brodnjak-Vončina, Darinka (Mentor) More about this mentor... New window
Štajnbaher, Darinka (Co-mentor)
Files:.pdf UNI_Znidar_Natalija_2011.pdf (1,77 MB)
 
Language:Slovenian
Work type:Undergraduate thesis (m5)
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:Namen diplomske naloge je določiti koncentracije policikličnih aromatskih ogljikovodikov v vzorcih zemlje. Za določitev policikličnih aromatskih ogljikovodikov v zemlji smo uporabili metodo plinske kromatografije z masno selektivnim detektorjem (GC/MSD) in metodo izbranih ionov (SIM – selected ion monitoring). Za kvantitativno določitev v GC/MSD smo uporabili interne standarde acenaften – d10, fenantren – d10 in krizen – d12. Postopek priprave vzorca je bil ekstrakcija trdno – tekoče z mešanico topil n-heksana in diklorometana. Za čiščenje ekstraktov smo uporabili kolono napolnjeno s silikagelom in aluminijevim oksidom. Rezultate vsebnosti policikličnih aromatskih ogljikovodikov smo statistično ovrednotili glede na zahteve validacijskega postopka (linearnost, ponovljivost, točnost, meja določljivosti, meja zaznavnosti, selektivnost in sistem zagotavljanja kakovosti). Ugotovili smo prisotnost vpliva matrice. Rezultati so pokazali, da je analizna metoda uporabna za določanje policikličnih aromatskih ogljikovodikov v zemlji, saj so bili izkoristki vseh policikličnih aromatskih ogljikovodikov z izjemo naftalena ponovljivi in znotraj predpisanega kriterija.
Keywords:policiklični aromatski ogljikovodiki, plinska kromatografija z masno selektivnim detektorjem, validacija analizne metode, zemlja
Year of publishing:2011
Publisher:[N. Žnidar]
Source:Maribor
UDC:547.6:543.544.3(043.2)
COBISS_ID:15151638 Link is opened in a new window
NUK URN:URN:SI:UM:DK:RNKTSAS8
Views:2484
Downloads:359
Metadata:XML RDF-CHPDL DC-XML DC-RDF
Categories:KTFMB - FKKT
:
  
Average score:(0 votes)
Your score:Voting is allowed only for logged in users.
Share:AddThis
AddThis uses cookies that require your consent. Edit consent...

Hover the mouse pointer over a document title to show the abstract or click on the title to get all document metadata.

Secondary language

Language:English
Title:DETERMINATION OF POLYCYCLIC AROMATIC HYDROCARBONS IN SOIL
Abstract:The aim of diploma thesis is to determine concentration of polycyclic aromatic hydrocarbons (PAH) in soil samples. For PAHs determination in soil samples gas chromatography with mass spectrometry (GC/MS) was used. Acenaphtene – d10, phenantrene – d10 and chrysene – d12 were used as internal standards for quantitation purposes. Analytical procedure is based on solid – liquid extraction using solvent mixture n-hexane and dichloromethane. The extracts were cleaned-up using silica/Al2O3 column. Results were statistically evaluated according to validation requirements (linearity, repeatability, accuracy, limit of quantitation, limit of detection, selectivity and according to quality assurance plan). We found the presence of matrix effect. The results show that the analytical method for the determination of PAHs in soil matrix is accurate and reliable, because the recoveries for all PAHs with the exception of naphtalene are reproducible and within permitted limits.
Keywords:polycyclic aromatic hydrocarbons, gas chromatography with mass spectromerty, validation of analitical method, soil


Comments

Leave comment

You have to log in to leave a comment.

Comments (0)
0 - 0 / 0
 
There are no comments!

Back
Logos of partners University of Maribor University of Ljubljana University of Primorska University of Nova Gorica