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undergraduate thesis
Ispitivanje odzivnih karakteristika različitih membrana za pripravu ISFE
završni rad
2017. urn:nbn:hr:167:775506
Bačić, Marko
University of Split
Faculty of Chemistry and Technology
Division of Chemistry

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Bačić, M. (2017). Ispitivanje odzivnih karakteristika različitih membrana za pripravu ISFE : završni rad (Undergraduate thesis). Split: University of Split, Faculty of Chemistry and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:167:775506

Bačić, Marko. "Ispitivanje odzivnih karakteristika različitih membrana za pripravu ISFE : završni rad." Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, 2017. https://urn.nsk.hr/urn:nbn:hr:167:775506

Bačić, Marko. "Ispitivanje odzivnih karakteristika različitih membrana za pripravu ISFE : završni rad." Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, 2017. https://urn.nsk.hr/urn:nbn:hr:167:775506

Bačić, M. (2017). 'Ispitivanje odzivnih karakteristika različitih membrana za pripravu ISFE : završni rad', Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, accessed 31 December 2024, https://urn.nsk.hr/urn:nbn:hr:167:775506

Bačić M. Ispitivanje odzivnih karakteristika različitih membrana za pripravu ISFE : završni rad [Undergraduate thesis]. Split: University of Split, Faculty of Chemistry and Technology; 2017 [cited 2024 December 31] Available at: https://urn.nsk.hr/urn:nbn:hr:167:775506

M. Bačić, "Ispitivanje odzivnih karakteristika različitih membrana za pripravu ISFE : završni rad", Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, Split, 2017. Available at: https://urn.nsk.hr/urn:nbn:hr:167:775506

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Metadata
TitleIspitivanje odzivnih karakteristika različitih membrana za pripravu ISFE : završni rad
Title (english)Examination response characteristics of different membranes for preparing ISFE : bachelor thesis
AuthorMarko Bačić
MentorMarija Bralić (mentor)
Committee memberMaša Buljac (predsjednik povjerenstva)
Committee memberAnte Prkić (član povjerenstva)
Committee memberMarija Bralić (član povjerenstva)
GranterUniversity of Split
Faculty of Chemistry and Technology
(Division of Chemistry)
Split
Defense date and country2017-09-27, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Abstract
U ovom radu korištene su LaF 3 membrane kod kojih su ispitivane odzivne karakteristike. Ispitan je odziv fluorid ion-selektivne elektrode pri pH 4,7 za tri različite membrane. Utvrđeno je da elektrode kod svake od ispitivanih membrana slijede linearnu promjenu potencijala do koncentracije fluorida 1×10 -6 mol L -1 , uz promjenu potencijala po koncentracijskim dekadama od:10 mV za LaF 3 (Eu 1%) 8x5, 24 mV za LaF 3 (Eu 0,3%) 8x1,5; 34 mV za LaF 3 (Eu 1%) 8x1,35 mV za LaF 3 (Eu 1%) 8x1 (prethodno močena 24 sata). Ispitan je i utjecaj pH na odziv fluorid ionsko-selektivne elektrode te je uočeno da je potencijal kod elektrode s membranom LaF 3 (Eu 1%) veličine 8x5 mm padao do pH vrijednosti 4 nakon čega bi se ustalio. Za druge dvije membrane potencijal s mijenjao s promjenom pH do vrijednosti pH = 5 nakon čega je potencijal ostao stabilan do pH = 9. Također je ispitan odziv elektrode u ovisnosti o vremenu za sve tri membrane Stabilan potencijal za elektrodu s membranom LaF 3 (Eu 1%) veličine 8x5 mm uspostavlja se u vremenu od 6 minuta, dok se stabilan potencijal za druge dvije membrane uspostavlja u vremenu do 2 minute.
Abstract (english)
In the following study case responsive characteristics of LaF 3 membranes are examined. Using 3 different membranes 4,7 pH fluoride ion-selective electrode responsivness is examined. It has been found out that electrodes of all examined membranes follow linear change of potential until fluoride concentration 10 -6 mol L -1 , potential changes are determined by concentration decades. It follows:10 mV of LaF 3 (Eu 1%) 8x5; 24 mV of LaF 3 (Eu 0,3%) 8x1,5; 34 mV of LaF 3 (Eu 1%) 8x1;35 mV of LaF 3 (Eu 1%) 8x1 (previously dipped in water for 24 hours). The influence of pH on the response of the fluoride ion-selective electrode was also investigated and the potential for electrodes with an 8 × 5 mm size of LaF 3 (Eu 1%) membrane fell to a pH of 4 after which it was settled. For the other two membranes, the potential varied with pH change to pH = 5, so the potential remained stable to pH = 9. An electrodes response in time dependent for all three membranes is also tested. Stable potential for 8x5mm-sized LaF 3 (Eu 1%) electrodes is established for a period of 6 minutes while a stable potential for the other two membranes is established for up to 2 minutes.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:167:775506
Study programmeTitle: Chemical Technology; specializations in: Chemical Engineering, Environmental Protection
Course: Chemical Engineering
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Public noteKljučne riječi doradio knjižničar/ Key words are revised by the librarian
Created on2018-08-30 09:03:04