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master's thesis
Kapacitet kompleksiranja bakra u atmosferskom taloženju na području nacionalnog parka Brijuni
Zagreb: University of Zagreb, Faculty of Science, 2022. urn:nbn:hr:217:750160
Poplašen, Valentina
University of Zagreb
Faculty of Science
Department of Chemistry

Institutional repository: Repository of the Faculty of Science

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Poplašen, V. (2022). Kapacitet kompleksiranja bakra u atmosferskom taloženju na području nacionalnog parka Brijuni (Master's thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:750160

Poplašen, Valentina. "Kapacitet kompleksiranja bakra u atmosferskom taloženju na području nacionalnog parka Brijuni." Master's thesis, University of Zagreb, Faculty of Science, 2022. https://urn.nsk.hr/urn:nbn:hr:217:750160

Poplašen, Valentina. "Kapacitet kompleksiranja bakra u atmosferskom taloženju na području nacionalnog parka Brijuni." Master's thesis, University of Zagreb, Faculty of Science, 2022. https://urn.nsk.hr/urn:nbn:hr:217:750160

Poplašen, V. (2022). 'Kapacitet kompleksiranja bakra u atmosferskom taloženju na području nacionalnog parka Brijuni', Master's thesis, University of Zagreb, Faculty of Science, accessed 30 December 2024, https://urn.nsk.hr/urn:nbn:hr:217:750160

Poplašen V. Kapacitet kompleksiranja bakra u atmosferskom taloženju na području nacionalnog parka Brijuni [Master's thesis]. Zagreb: University of Zagreb, Faculty of Science; 2022 [cited 2024 December 30] Available at: https://urn.nsk.hr/urn:nbn:hr:217:750160

V. Poplašen, "Kapacitet kompleksiranja bakra u atmosferskom taloženju na području nacionalnog parka Brijuni", Master's thesis, University of Zagreb, Faculty of Science, Zagreb, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:217:750160

Metadata
TitleKapacitet kompleksiranja bakra u atmosferskom taloženju na području nacionalnog parka Brijuni
Title (english)Copper complexing capacity in atmospheric deposition in the area of Brijuni national park
AuthorValentina Poplašen
MentorSlađana Strmečki Kos (mentor)
Committee memberNives Galić (predsjednik povjerenstva)
Committee memberŽeljka Soldin (član povjerenstva)
Committee memberDavor Kovačević (član povjerenstva)
Committee memberIva Juranović Cindrić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Science
(Department of Chemistry)
Zagreb
Defense date and country2022-09-28, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Abstract
Bioraspoloživost Cu2+-iona u prirodnim vodenim uzorcima je određena njihovom kemijskom specijacijom. U radu su definirani mjerni uvjeti (potencijal desorpcije −1,4 V i dodatak 1 mg dm−3 surfaktanta T-X-100) koji su omogućili smanjenje interferencije atmosferskih molekula poput fulvične kiseline i HULIS-C na radnoj elektrodi. Nakon transformacije rezultata kompleksometrijskih titracija u matematičke metode u ProMCC programu određeni su parametri kapaciteta kompleksiranja Cu2+-iona: ukupna koncentracija organskih molekula (cL) koje vežu Cu2+-ione u slabije inertne komplekse (log Ku < 11,4) u uzorcima kiše (od (51,5 ± 5,65) do (306 ± 5,65)x10−9 mol dm−3 ), ukupne taložne tvari (od (27,7 ± 2,77) do (263 ± 5,65) x10−9 mol dm−3 ), i u vodotopljivoj frakciji atmosferskih lebdećih čestica (od (69,6 ± 3,3) do (392 ± 4,4)x10−9 mol dm−3 ) s područja NP Brijuni od 4.10. do 3.11.2021. U uzorcima kiše i UTT su svi Cu2+-ioni kompleksirani, dok u nekim uzorcima atmosferskih čestica postoji nekompleksirana i potencijalno biodostupna koncentracija Cu2+-iona.
Abstract (english)
The bioavailability of Cu2+-ions in natural waters is regulated by their chemical speciation. In this work, the measurement conditions (desorption potential −1,4 V, addition of 1 mg dm−3 TX-100) were chosen to reduce the interference of atmospheric molecules such as fulvic acid and HULIS-C on the working electrode. After converting the results of complexometric titrations into mathematical models in the ProMCC program, the copper complexation capacity parameters were determined: total concentration of organic molecules (cL) binding Cu2+-ions in weaker inert complexes (log Ku < 11,4) in rain ((51,5 ± 5,65) to (306 ± 5,65)x10−9 mol dm−3 ), in total atmospheric deposition ((27,7 ± 2,77) to (263 ± 5,65) x10−9 mol dm−3 ), and in the water-soluble fraction of particulate matter ((69,6 ± 3,3) to (392 ± 4,4) x10−9 mol dm−3 ) from the NP Brijuni in October-November 2021. In the samples of rain and UTT, Cu2+-ions are complexed, while in some particulate matter there is a non-complexed and potentially bioavailable Cu2+-ions concentration.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:217:750160
ProjectNumber: IP-2018-01-3105
Title: Biokemijski odgovori površinskog sloja oligotrofnog područja Jadranskog mora na atmosfersko taloženje
Acronym: BiREADI
Leader: Sanja Frka Milosavljević
Jurisdiction: Croatia
Funder: HRZZ
Funding stream: IP
Study programmeTitle: Graduate university studies in chemistry; specializations in: Research programme
Course: Research programme
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra kemije (magistar/magistra kemije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Embargo expiration date: 2024-09-28
Terms of useLicence In copyright icon
Created on2022-10-11 14:16:40